3 |
* |
* |
4 |
* Copyright (C) 2005-2010 NTT DATA CORPORATION |
* Copyright (C) 2005-2010 NTT DATA CORPORATION |
5 |
* |
* |
6 |
* Version: 1.7.2 2010/04/01 |
* Version: 1.7.2+ 2010/06/04 |
7 |
* |
* |
8 |
* This file is applicable to both 2.4.30 and 2.6.11 and later. |
* This file is applicable to both 2.4.30 and 2.6.11 and later. |
9 |
* See README.ccs for ChangeLog. |
* See README.ccs for ChangeLog. |
40 |
static struct ccs_profile *ccs_profile_ptr[CCS_MAX_PROFILES]; |
static struct ccs_profile *ccs_profile_ptr[CCS_MAX_PROFILES]; |
41 |
|
|
42 |
/* String table for functionality that takes 4 modes. */ |
/* String table for functionality that takes 4 modes. */ |
43 |
static const char *ccs_mode_4[4] = { |
static const char *ccs_mode[CCS_CONFIG_MAX_MODE] = { |
44 |
"disabled", "learning", "permissive", "enforcing" |
[CCS_CONFIG_DISABLED] = "disabled", |
45 |
|
[CCS_CONFIG_LEARNING] = "learning", |
46 |
|
[CCS_CONFIG_PERMISSIVE] = "permissive", |
47 |
|
[CCS_CONFIG_ENFORCING] = "enforcing" |
48 |
}; |
}; |
49 |
|
|
50 |
/* String table for /proc/ccs/profile */ |
/* String table for /proc/ccs/profile */ |
249 |
} |
} |
250 |
|
|
251 |
/** |
/** |
252 |
* ccs_find_or_assign_new_profile - Create a new profile. |
* ccs_assign_profile - Create a new profile. |
253 |
* |
* |
254 |
* @profile: Profile number to create. |
* @profile: Profile number to create. |
255 |
* |
* |
256 |
* Returns pointer to "struct ccs_profile" on success, NULL otherwise. |
* Returns pointer to "struct ccs_profile" on success, NULL otherwise. |
257 |
*/ |
*/ |
258 |
static struct ccs_profile *ccs_find_or_assign_new_profile(const unsigned int |
static struct ccs_profile *ccs_assign_profile(const unsigned int profile) |
|
profile) |
|
259 |
{ |
{ |
260 |
struct ccs_profile *ptr; |
struct ccs_profile *ptr; |
261 |
struct ccs_profile *entry; |
struct ccs_profile *entry; |
307 |
if (ccs_profile_version != 20090903) |
if (ccs_profile_version != 20090903) |
308 |
panic("Profile version %u is not supported.\n", |
panic("Profile version %u is not supported.\n", |
309 |
ccs_profile_version); |
ccs_profile_version); |
310 |
printk(KERN_INFO "CCSecurity: 1.7.2 2010/04/01\n"); |
printk(KERN_INFO "CCSecurity: 1.7.2+ 2010/06/04\n"); |
311 |
printk(KERN_INFO "Mandatory Access Control activated.\n"); |
printk(KERN_INFO "Mandatory Access Control activated.\n"); |
312 |
} |
} |
313 |
|
|
327 |
return ptr; |
return ptr; |
328 |
} |
} |
329 |
|
|
330 |
/** |
static s8 ccs_find_yesno(const char *string, const char *find) |
|
* ccs_write_profile - Write profile table. |
|
|
* |
|
|
* @head: Pointer to "struct ccs_io_buffer". |
|
|
* |
|
|
* Returns 0 on success, negative value otherwise. |
|
|
*/ |
|
|
static int ccs_write_profile(struct ccs_io_buffer *head) |
|
331 |
{ |
{ |
332 |
char *data = head->write_buf; |
const char *cp = strstr(string, find); |
333 |
unsigned int i; |
if (cp) { |
334 |
int value; |
cp += strlen(find); |
335 |
int mode; |
if (!strncmp(cp, "=yes", 4)) |
336 |
u8 config; |
return 1; |
337 |
bool use_default = false; |
else if (!strncmp(cp, "=no", 3)) |
338 |
char *cp; |
return 0; |
|
struct ccs_profile *profile; |
|
|
if (sscanf(data, "PROFILE_VERSION=%u", &ccs_profile_version) == 1) |
|
|
return 0; |
|
|
i = simple_strtoul(data, &cp, 10); |
|
|
if (data == cp) { |
|
|
profile = &ccs_default_profile; |
|
|
} else { |
|
|
if (*cp != '-') |
|
|
return -EINVAL; |
|
|
data = cp + 1; |
|
|
profile = ccs_find_or_assign_new_profile(i); |
|
|
if (!profile) |
|
|
return -EINVAL; |
|
339 |
} |
} |
340 |
cp = strchr(data, '='); |
return -1; |
341 |
if (!cp) |
} |
342 |
return -EINVAL; |
|
343 |
*cp++ = '\0'; |
static void ccs_set_bool(bool *b, const char *string, const char *find) |
344 |
if (profile != &ccs_default_profile) |
{ |
345 |
use_default = strstr(cp, "use_default") != NULL; |
switch (ccs_find_yesno(string, find)) { |
346 |
if (strstr(cp, "verbose=yes")) |
case 1: |
347 |
value = 1; |
*b = true; |
348 |
else if (strstr(cp, "verbose=no")) |
break; |
349 |
value = 0; |
case 0: |
350 |
else |
*b = false; |
351 |
value = -1; |
break; |
352 |
if (!strcmp(data, "PREFERENCE::audit")) { |
} |
353 |
#ifdef CONFIG_CCSECURITY_AUDIT |
} |
354 |
char *cp2; |
|
355 |
#endif |
static void ccs_set_uint(unsigned int *i, const char *string, const char *find) |
356 |
|
{ |
357 |
|
const char *cp = strstr(string, find); |
358 |
|
if (cp) |
359 |
|
sscanf(cp + strlen(find), "=%u", i); |
360 |
|
} |
361 |
|
|
362 |
|
static void ccs_set_pref(const char *name, const char *value, |
363 |
|
const bool use_default, struct ccs_profile *profile) |
364 |
|
{ |
365 |
|
struct ccs_preference **pref; |
366 |
|
bool *verbose; |
367 |
|
if (!strcmp(name, "audit")) { |
368 |
if (use_default) { |
if (use_default) { |
369 |
profile->audit = &ccs_default_profile.preference; |
pref = &profile->audit; |
370 |
return 0; |
goto set_default; |
371 |
} |
} |
372 |
profile->audit = &profile->preference; |
profile->audit = &profile->preference; |
373 |
#ifdef CONFIG_CCSECURITY_AUDIT |
#ifdef CONFIG_CCSECURITY_AUDIT |
374 |
cp2 = strstr(cp, "max_grant_log="); |
ccs_set_uint(&profile->preference.audit_max_grant_log, value, |
375 |
if (cp2) |
"max_grant_log"); |
376 |
sscanf(cp2 + 14, "%u", |
ccs_set_uint(&profile->preference.audit_max_reject_log, value, |
377 |
&profile->preference.audit_max_grant_log); |
"max_reject_log"); |
|
cp2 = strstr(cp, "max_reject_log="); |
|
|
if (cp2) |
|
|
sscanf(cp2 + 15, "%u", |
|
|
&profile->preference.audit_max_reject_log); |
|
378 |
#endif |
#endif |
379 |
if (strstr(cp, "task_info=yes")) |
ccs_set_bool(&profile->preference.audit_task_info, value, |
380 |
profile->preference.audit_task_info = true; |
"task_info"); |
381 |
else if (strstr(cp, "task_info=no")) |
ccs_set_bool(&profile->preference.audit_path_info, value, |
382 |
profile->preference.audit_task_info = false; |
"path_info"); |
383 |
if (strstr(cp, "path_info=yes")) |
return; |
|
profile->preference.audit_path_info = true; |
|
|
else if (strstr(cp, "path_info=no")) |
|
|
profile->preference.audit_path_info = false; |
|
|
return 0; |
|
384 |
} |
} |
385 |
if (!strcmp(data, "PREFERENCE::enforcing")) { |
if (!strcmp(name, "enforcing")) { |
|
char *cp2; |
|
386 |
if (use_default) { |
if (use_default) { |
387 |
profile->enforcing = &ccs_default_profile.preference; |
pref = &profile->enforcing; |
388 |
return 0; |
goto set_default; |
389 |
} |
} |
390 |
profile->enforcing = &profile->preference; |
profile->enforcing = &profile->preference; |
391 |
if (value >= 0) |
ccs_set_uint(&profile->preference.enforcing_penalty, value, |
392 |
profile->preference.enforcing_verbose = value; |
"penalty"); |
393 |
cp2 = strstr(cp, "penalty="); |
verbose = &profile->preference.enforcing_verbose; |
394 |
if (cp2) |
goto set_verbose; |
|
sscanf(cp2 + 8, "%u", |
|
|
&profile->preference.enforcing_penalty); |
|
|
return 0; |
|
395 |
} |
} |
396 |
if (!strcmp(data, "PREFERENCE::permissive")) { |
if (!strcmp(name, "permissive")) { |
397 |
if (use_default) { |
if (use_default) { |
398 |
profile->permissive = &ccs_default_profile.preference; |
pref = &profile->permissive; |
399 |
return 0; |
goto set_default; |
400 |
} |
} |
401 |
profile->permissive = &profile->preference; |
profile->permissive = &profile->preference; |
402 |
if (value >= 0) |
verbose = &profile->preference.permissive_verbose; |
403 |
profile->preference.permissive_verbose = value; |
goto set_verbose; |
|
return 0; |
|
404 |
} |
} |
405 |
if (!strcmp(data, "PREFERENCE::learning")) { |
if (!strcmp(name, "learning")) { |
|
char *cp2; |
|
406 |
if (use_default) { |
if (use_default) { |
407 |
profile->learning = &ccs_default_profile.preference; |
pref = &profile->learning; |
408 |
return 0; |
goto set_default; |
409 |
} |
} |
410 |
profile->learning = &profile->preference; |
profile->learning = &profile->preference; |
411 |
if (value >= 0) |
ccs_set_uint(&profile->preference.learning_max_entry, value, |
412 |
profile->preference.learning_verbose = value; |
"max_entry"); |
413 |
cp2 = strstr(cp, "max_entry="); |
ccs_set_bool(&profile->preference.learning_exec_realpath, |
414 |
if (cp2) |
value, "exec.realpath"); |
415 |
sscanf(cp2 + 10, "%u", |
ccs_set_bool(&profile->preference.learning_exec_argv0, value, |
416 |
&profile->preference.learning_max_entry); |
"exec.argv0"); |
417 |
if (strstr(cp, "exec.realpath=yes")) |
ccs_set_bool(&profile->preference.learning_symlink_target, |
418 |
profile->preference.learning_exec_realpath = true; |
value, "symlink.target"); |
419 |
else if (strstr(cp, "exec.realpath=no")) |
verbose = &profile->preference.learning_verbose; |
420 |
profile->preference.learning_exec_realpath = false; |
goto set_verbose; |
421 |
if (strstr(cp, "exec.argv0=yes")) |
} |
422 |
profile->preference.learning_exec_argv0 = true; |
return; |
423 |
else if (strstr(cp, "exec.argv0=no")) |
set_default: |
424 |
profile->preference.learning_exec_argv0 = false; |
*pref = &ccs_default_profile.preference; |
425 |
if (strstr(cp, "symlink.target=yes")) |
return; |
426 |
profile->preference.learning_symlink_target = true; |
set_verbose: |
427 |
else if (strstr(cp, "symlink.target=no")) |
ccs_set_bool(verbose, value, "verbose"); |
428 |
profile->preference.learning_symlink_target = false; |
} |
429 |
return 0; |
|
430 |
} |
static int ccs_set_mode(char *name, const char *value, const bool use_default, |
431 |
if (profile == &ccs_default_profile) |
struct ccs_profile *profile) |
432 |
return -EINVAL; |
{ |
433 |
if (!strcmp(data, "COMMENT")) { |
u8 i; |
434 |
const struct ccs_path_info *old_comment = profile->comment; |
u8 config; |
435 |
profile->comment = ccs_get_name(cp); |
if (!strcmp(name, "CONFIG")) { |
|
ccs_put_name(old_comment); |
|
|
return 0; |
|
|
} |
|
|
if (!strcmp(data, "CONFIG")) { |
|
436 |
i = CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
i = CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
437 |
+ CCS_MAX_MAC_CATEGORY_INDEX; |
+ CCS_MAX_MAC_CATEGORY_INDEX; |
438 |
config = profile->default_config; |
config = profile->default_config; |
439 |
} else if (ccs_str_starts(&data, "CONFIG::")) { |
} else if (ccs_str_starts(&name, "CONFIG::")) { |
440 |
config = 0; |
config = 0; |
441 |
for (i = 0; i < CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
for (i = 0; i < CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
442 |
+ CCS_MAX_MAC_CATEGORY_INDEX; i++) { |
+ CCS_MAX_MAC_CATEGORY_INDEX; i++) { |
443 |
if (strcmp(data, ccs_mac_keywords[i])) |
if (strcmp(name, ccs_mac_keywords[i])) |
444 |
continue; |
continue; |
445 |
config = profile->config[i]; |
config = profile->config[i]; |
446 |
break; |
break; |
454 |
if (use_default) { |
if (use_default) { |
455 |
config = CCS_CONFIG_USE_DEFAULT; |
config = CCS_CONFIG_USE_DEFAULT; |
456 |
} else { |
} else { |
457 |
for (mode = 3; mode >= 0; mode--) |
u8 mode; |
458 |
if (strstr(cp, ccs_mode_4[mode])) |
for (mode = 0; mode < CCS_CONFIG_MAX_MODE; mode++) |
459 |
|
if (strstr(value, ccs_mode[mode])) |
460 |
/* |
/* |
461 |
* Update lower 3 bits in order to distinguish |
* Update lower 3 bits in order to distinguish |
462 |
* 'config' from 'CCS_CONFIG_USE_DEAFULT'. |
* 'config' from 'CCS_CONFIG_USE_DEAFULT'. |
464 |
config = (config & ~7) | mode; |
config = (config & ~7) | mode; |
465 |
#ifdef CONFIG_CCSECURITY_AUDIT |
#ifdef CONFIG_CCSECURITY_AUDIT |
466 |
if (config != CCS_CONFIG_USE_DEFAULT) { |
if (config != CCS_CONFIG_USE_DEFAULT) { |
467 |
if (strstr(cp, "grant_log=yes")) |
switch (ccs_find_yesno(value, "grant_log")) { |
468 |
|
case 1: |
469 |
config |= CCS_CONFIG_WANT_GRANT_LOG; |
config |= CCS_CONFIG_WANT_GRANT_LOG; |
470 |
else if (strstr(cp, "grant_log=no")) |
break; |
471 |
|
case 0: |
472 |
config &= ~CCS_CONFIG_WANT_GRANT_LOG; |
config &= ~CCS_CONFIG_WANT_GRANT_LOG; |
473 |
if (strstr(cp, "reject_log=yes")) |
break; |
474 |
|
} |
475 |
|
switch (ccs_find_yesno(value, "reject_log")) { |
476 |
|
case 1: |
477 |
config |= CCS_CONFIG_WANT_REJECT_LOG; |
config |= CCS_CONFIG_WANT_REJECT_LOG; |
478 |
else if (strstr(cp, "reject_log=no")) |
break; |
479 |
|
case 0: |
480 |
config &= ~CCS_CONFIG_WANT_REJECT_LOG; |
config &= ~CCS_CONFIG_WANT_REJECT_LOG; |
481 |
|
break; |
482 |
|
} |
483 |
} |
} |
484 |
#endif |
#endif |
485 |
} |
} |
492 |
} |
} |
493 |
|
|
494 |
/** |
/** |
495 |
|
* ccs_write_profile - Write profile table. |
496 |
|
* |
497 |
|
* @head: Pointer to "struct ccs_io_buffer". |
498 |
|
* |
499 |
|
* Returns 0 on success, negative value otherwise. |
500 |
|
*/ |
501 |
|
static int ccs_write_profile(struct ccs_io_buffer *head) |
502 |
|
{ |
503 |
|
char *data = head->write_buf; |
504 |
|
bool use_default = false; |
505 |
|
char *cp; |
506 |
|
int i; |
507 |
|
struct ccs_profile *profile; |
508 |
|
if (sscanf(data, "PROFILE_VERSION=%u", &ccs_profile_version) == 1) |
509 |
|
return 0; |
510 |
|
i = simple_strtoul(data, &cp, 10); |
511 |
|
if (data == cp) { |
512 |
|
profile = &ccs_default_profile; |
513 |
|
} else { |
514 |
|
if (*cp != '-') |
515 |
|
return -EINVAL; |
516 |
|
data = cp + 1; |
517 |
|
profile = ccs_assign_profile(i); |
518 |
|
if (!profile) |
519 |
|
return -EINVAL; |
520 |
|
} |
521 |
|
cp = strchr(data, '='); |
522 |
|
if (!cp) |
523 |
|
return -EINVAL; |
524 |
|
*cp++ = '\0'; |
525 |
|
if (profile != &ccs_default_profile) |
526 |
|
use_default = strstr(cp, "use_default") != NULL; |
527 |
|
if (ccs_str_starts(&data, "PREFERENCE::")) { |
528 |
|
ccs_set_pref(data, cp, use_default, profile); |
529 |
|
return 0; |
530 |
|
} |
531 |
|
if (profile == &ccs_default_profile) |
532 |
|
return -EINVAL; |
533 |
|
if (!strcmp(data, "COMMENT")) { |
534 |
|
const struct ccs_path_info *old_comment = profile->comment; |
535 |
|
profile->comment = ccs_get_name(cp); |
536 |
|
ccs_put_name(old_comment); |
537 |
|
return 0; |
538 |
|
} |
539 |
|
return ccs_set_mode(data, cp, use_default, profile); |
540 |
|
} |
541 |
|
|
542 |
|
static bool ccs_print_preference(struct ccs_io_buffer *head, const int idx) |
543 |
|
{ |
544 |
|
struct ccs_preference *pref = &ccs_default_profile.preference; |
545 |
|
const struct ccs_profile *profile = idx >= 0 ? |
546 |
|
ccs_profile_ptr[idx] : NULL; |
547 |
|
char buffer[16] = ""; |
548 |
|
if (profile) { |
549 |
|
buffer[sizeof(buffer) - 1] = '\0'; |
550 |
|
snprintf(buffer, sizeof(buffer) - 1, "%u-", idx); |
551 |
|
} |
552 |
|
if (profile) { |
553 |
|
pref = profile->audit; |
554 |
|
if (pref == &ccs_default_profile.preference) |
555 |
|
pref = NULL; |
556 |
|
} |
557 |
|
if (pref && !ccs_io_printf(head, "%sPREFERENCE::%s={ " |
558 |
|
#ifdef CONFIG_CCSECURITY_AUDIT |
559 |
|
"max_grant_log=%u max_reject_log=%u " |
560 |
|
#endif |
561 |
|
"task_info=%s path_info=%s }\n", buffer, |
562 |
|
"audit", |
563 |
|
#ifdef CONFIG_CCSECURITY_AUDIT |
564 |
|
pref->audit_max_grant_log, |
565 |
|
pref->audit_max_reject_log, |
566 |
|
#endif |
567 |
|
ccs_yesno(pref->audit_task_info), |
568 |
|
ccs_yesno(pref->audit_path_info))) |
569 |
|
return false; |
570 |
|
if (profile) { |
571 |
|
pref = profile->learning; |
572 |
|
if (pref == &ccs_default_profile.preference) |
573 |
|
pref = NULL; |
574 |
|
} |
575 |
|
if (pref && !ccs_io_printf(head, "%sPREFERENCE::%s={ " |
576 |
|
"verbose=%s max_entry=%u exec.realpath=%s " |
577 |
|
"exec.argv0=%s symlink.target=%s }\n", |
578 |
|
buffer, "learning", |
579 |
|
ccs_yesno(pref->learning_verbose), |
580 |
|
pref->learning_max_entry, |
581 |
|
ccs_yesno(pref->learning_exec_realpath), |
582 |
|
ccs_yesno(pref->learning_exec_argv0), |
583 |
|
ccs_yesno(pref->learning_symlink_target))) |
584 |
|
return false; |
585 |
|
if (profile) { |
586 |
|
pref = profile->permissive; |
587 |
|
if (pref == &ccs_default_profile.preference) |
588 |
|
pref = NULL; |
589 |
|
} |
590 |
|
if (pref && !ccs_io_printf(head, "%sPREFERENCE::%s={ verbose=%s }\n", |
591 |
|
buffer, "permissive", |
592 |
|
ccs_yesno(pref->permissive_verbose))) |
593 |
|
return false; |
594 |
|
if (profile) { |
595 |
|
pref = profile->enforcing; |
596 |
|
if (pref == &ccs_default_profile.preference) |
597 |
|
pref = NULL; |
598 |
|
} |
599 |
|
return !pref || ccs_io_printf(head, "%sPREFERENCE::%s={ verbose=%s " |
600 |
|
"penalty=%u }\n", buffer, "enforcing", |
601 |
|
ccs_yesno(pref->enforcing_verbose), |
602 |
|
pref->enforcing_penalty); |
603 |
|
} |
604 |
|
|
605 |
|
/** |
606 |
* ccs_read_profile - Read profile table. |
* ccs_read_profile - Read profile table. |
607 |
* |
* |
608 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
615 |
if (head->read_bit) |
if (head->read_bit) |
616 |
goto body; |
goto body; |
617 |
ccs_io_printf(head, "PROFILE_VERSION=%s\n", "20090903"); |
ccs_io_printf(head, "PROFILE_VERSION=%s\n", "20090903"); |
618 |
ccs_io_printf(head, "PREFERENCE::audit={ " |
ccs_print_preference(head, -1); |
|
#ifdef CONFIG_CCSECURITY_AUDIT |
|
|
"max_grant_log=%u max_reject_log=%u " |
|
|
#endif |
|
|
"task_info=%s path_info=%s }\n", |
|
|
#ifdef CONFIG_CCSECURITY_AUDIT |
|
|
ccs_default_profile.preference.audit_max_grant_log, |
|
|
ccs_default_profile.preference.audit_max_reject_log, |
|
|
#endif |
|
|
ccs_yesno(ccs_default_profile.preference. |
|
|
audit_task_info), |
|
|
ccs_yesno(ccs_default_profile.preference. |
|
|
audit_path_info)); |
|
|
ccs_io_printf(head, "PREFERENCE::learning={ verbose=%s max_entry=%u " |
|
|
"exec.realpath=%s exec.argv0=%s symlink.target=%s }\n", |
|
|
ccs_yesno(ccs_default_profile.preference. |
|
|
learning_verbose), |
|
|
ccs_default_profile.preference.learning_max_entry, |
|
|
ccs_yesno(ccs_default_profile.preference. |
|
|
learning_exec_realpath), |
|
|
ccs_yesno(ccs_default_profile.preference. |
|
|
learning_exec_argv0), |
|
|
ccs_yesno(ccs_default_profile.preference. |
|
|
learning_symlink_target)); |
|
|
ccs_io_printf(head, "PREFERENCE::permissive={ verbose=%s }\n", |
|
|
ccs_yesno(ccs_default_profile.preference. |
|
|
permissive_verbose)); |
|
|
ccs_io_printf(head, "PREFERENCE::enforcing={ verbose=%s penalty=%u " |
|
|
"}\n", |
|
|
ccs_yesno(ccs_default_profile.preference. |
|
|
enforcing_verbose), |
|
|
ccs_default_profile.preference.enforcing_penalty); |
|
619 |
head->read_bit = 1; |
head->read_bit = 1; |
620 |
body: |
body: |
621 |
for (index = head->read_step; index < CCS_MAX_PROFILES; index++) { |
for (index = head->read_step; index < CCS_MAX_PROFILES; index++) { |
636 |
goto out; |
goto out; |
637 |
config = profile->default_config; |
config = profile->default_config; |
638 |
#ifdef CONFIG_CCSECURITY_AUDIT |
#ifdef CONFIG_CCSECURITY_AUDIT |
639 |
if (!ccs_io_printf(head, "%u-CONFIG={ mode=%s grant_log=%s " |
if (!ccs_io_printf(head, "%u-%s%s={ mode=%s " |
640 |
"reject_log=%s }\n", index, |
"grant_log=%s reject_log=%s }\n", index, |
641 |
ccs_mode_4[config & 3], |
"CONFIG", "", ccs_mode[config & 3], |
642 |
ccs_yesno(config & |
ccs_yesno(config & |
643 |
CCS_CONFIG_WANT_GRANT_LOG), |
CCS_CONFIG_WANT_GRANT_LOG), |
644 |
ccs_yesno(config & |
ccs_yesno(config & |
645 |
CCS_CONFIG_WANT_REJECT_LOG))) |
CCS_CONFIG_WANT_REJECT_LOG))) |
646 |
goto out; |
goto out; |
647 |
#else |
#else |
648 |
if (!ccs_io_printf(head, "%u-CONFIG={ mode=%s }\n", index, |
if (!ccs_io_printf(head, "%u-%s%s={ mode=%s }\n", index, |
649 |
ccs_mode_4[config & 3])) |
"CONFIG", "", ccs_mode[config & 3])) |
650 |
goto out; |
goto out; |
651 |
#endif |
#endif |
652 |
for (i = 0; i < CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
for (i = 0; i < CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
661 |
#ifdef CONFIG_CCSECURITY_AUDIT |
#ifdef CONFIG_CCSECURITY_AUDIT |
662 |
g = ccs_yesno(config & CCS_CONFIG_WANT_GRANT_LOG); |
g = ccs_yesno(config & CCS_CONFIG_WANT_GRANT_LOG); |
663 |
r = ccs_yesno(config & CCS_CONFIG_WANT_REJECT_LOG); |
r = ccs_yesno(config & CCS_CONFIG_WANT_REJECT_LOG); |
664 |
if (!ccs_io_printf(head, "%u-CONFIG::%s={ mode=%s " |
if (!ccs_io_printf(head, "%u-%s%s={ mode=%s " |
665 |
"grant_log=%s reject_log=%s }\n", |
"grant_log=%s reject_log=%s }\n", |
666 |
index, ccs_mac_keywords[i], |
index, "CONFIG::", |
667 |
ccs_mode_4[config & 3], g, r)) |
ccs_mac_keywords[i], |
668 |
|
ccs_mode[config & 3], g, r)) |
669 |
goto out; |
goto out; |
670 |
#else |
#else |
671 |
if (!ccs_io_printf(head, "%u-CONFIG::%s={ mode=%s }\n", |
if (!ccs_io_printf(head, "%u-%s%s={ mode=%s }\n", |
672 |
index, ccs_mac_keywords[i], |
index, "CONFIG::", |
673 |
ccs_mode_4[config & 3])) |
ccs_mac_keywords[i], |
674 |
|
ccs_mode[config & 3])) |
675 |
goto out; |
goto out; |
676 |
#endif |
#endif |
677 |
} |
} |
678 |
if (profile->audit != &ccs_default_profile.preference && |
if (!ccs_print_preference(head, index)) |
|
!ccs_io_printf(head, "%u-PREFERENCE::audit={ " |
|
|
#ifdef CONFIG_CCSECURITY_AUDIT |
|
|
"max_grant_log=%u max_reject_log=%u " |
|
|
#endif |
|
|
"task_info=%s path_info=%s }\n", index, |
|
|
#ifdef CONFIG_CCSECURITY_AUDIT |
|
|
profile->preference.audit_max_grant_log, |
|
|
profile->preference.audit_max_reject_log, |
|
|
#endif |
|
|
ccs_yesno(profile->preference. |
|
|
audit_task_info), |
|
|
ccs_yesno(profile->preference. |
|
|
audit_path_info))) |
|
|
goto out; |
|
|
if (profile->learning != &ccs_default_profile.preference && |
|
|
!ccs_io_printf(head, "%u-PREFERENCE::learning={ " |
|
|
"verbose=%s max_entry=%u exec.realpath=%s " |
|
|
"exec.argv0=%s symlink.target=%s }\n", |
|
|
index, |
|
|
ccs_yesno(profile->preference. |
|
|
learning_verbose), |
|
|
profile->preference.learning_max_entry, |
|
|
ccs_yesno(profile->preference. |
|
|
learning_exec_realpath), |
|
|
ccs_yesno(profile->preference. |
|
|
learning_exec_argv0), |
|
|
ccs_yesno(profile->preference. |
|
|
learning_symlink_target))) |
|
|
goto out; |
|
|
if (profile->permissive != &ccs_default_profile.preference && |
|
|
!ccs_io_printf(head, "%u-PREFERENCE::permissive={ " |
|
|
"verbose=%s }\n", index, |
|
|
ccs_yesno(profile->preference. |
|
|
permissive_verbose))) |
|
|
goto out; |
|
|
if (profile->enforcing != &ccs_default_profile.preference && |
|
|
!ccs_io_printf(head, "%u-PREFERENCE::enforcing={ " |
|
|
"verbose=%s penalty=%u }\n", index, |
|
|
ccs_yesno(profile->preference. |
|
|
enforcing_verbose), |
|
|
profile->preference.enforcing_penalty)) |
|
679 |
goto out; |
goto out; |
680 |
continue; |
continue; |
681 |
out: |
out: |
686 |
head->read_eof = true; |
head->read_eof = true; |
687 |
} |
} |
688 |
|
|
689 |
/* The list for "struct ccs_policy_manager_entry". */ |
static bool ccs_same_manager_entry(const struct ccs_acl_head *a, |
690 |
LIST_HEAD(ccs_policy_manager_list); |
const struct ccs_acl_head *b) |
691 |
|
{ |
692 |
|
return container_of(a, struct ccs_manager, head)->manager |
693 |
|
== container_of(b, struct ccs_manager, head)->manager; |
694 |
|
} |
695 |
|
|
696 |
/** |
/** |
697 |
* ccs_update_manager_entry - Add a manager entry. |
* ccs_update_manager_entry - Add a manager entry. |
703 |
*/ |
*/ |
704 |
static int ccs_update_manager_entry(const char *manager, const bool is_delete) |
static int ccs_update_manager_entry(const char *manager, const bool is_delete) |
705 |
{ |
{ |
706 |
struct ccs_policy_manager_entry *ptr; |
struct ccs_manager e = { }; |
|
struct ccs_policy_manager_entry e = { }; |
|
707 |
int error = is_delete ? -ENOENT : -ENOMEM; |
int error = is_delete ? -ENOENT : -ENOMEM; |
708 |
if (ccs_is_domain_def(manager)) { |
if (ccs_domain_def(manager)) { |
709 |
if (!ccs_is_correct_domain(manager)) |
if (!ccs_correct_domain(manager)) |
710 |
return -EINVAL; |
return -EINVAL; |
711 |
e.is_domain = true; |
e.is_domain = true; |
712 |
} else { |
} else { |
713 |
if (!ccs_is_correct_path(manager, 1, -1, -1)) |
if (!ccs_correct_path(manager)) |
714 |
return -EINVAL; |
return -EINVAL; |
715 |
} |
} |
716 |
e.manager = ccs_get_name(manager); |
e.manager = ccs_get_name(manager); |
717 |
if (!e.manager) |
if (!e.manager) |
718 |
return -ENOMEM; |
return error; |
719 |
if (mutex_lock_interruptible(&ccs_policy_lock)) |
error = ccs_update_policy(&e.head, sizeof(e), is_delete, |
720 |
goto out; |
&ccs_policy_list[CCS_ID_MANAGER], |
721 |
list_for_each_entry_rcu(ptr, &ccs_policy_manager_list, list) { |
ccs_same_manager_entry); |
|
if (ptr->manager != e.manager) |
|
|
continue; |
|
|
ptr->is_deleted = is_delete; |
|
|
error = 0; |
|
|
break; |
|
|
} |
|
|
if (!is_delete && error) { |
|
|
struct ccs_policy_manager_entry *entry = |
|
|
ccs_commit_ok(&e, sizeof(e)); |
|
|
if (entry) { |
|
|
list_add_tail_rcu(&entry->list, |
|
|
&ccs_policy_manager_list); |
|
|
error = 0; |
|
|
} |
|
|
} |
|
|
mutex_unlock(&ccs_policy_lock); |
|
|
out: |
|
722 |
ccs_put_name(e.manager); |
ccs_put_name(e.manager); |
723 |
return error; |
return error; |
724 |
} |
} |
725 |
|
|
726 |
/** |
/** |
727 |
* ccs_write_manager_policy - Write manager policy. |
* ccs_write_manager - Write manager policy. |
728 |
* |
* |
729 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
730 |
* |
* |
731 |
* Returns 0 on success, negative value otherwise. |
* Returns 0 on success, negative value otherwise. |
732 |
*/ |
*/ |
733 |
static int ccs_write_manager_policy(struct ccs_io_buffer *head) |
static int ccs_write_manager(struct ccs_io_buffer *head) |
734 |
{ |
{ |
735 |
char *data = head->write_buf; |
char *data = head->write_buf; |
736 |
bool is_delete = ccs_str_starts(&data, CCS_KEYWORD_DELETE); |
bool is_delete = ccs_str_starts(&data, CCS_KEYWORD_DELETE); |
742 |
} |
} |
743 |
|
|
744 |
/** |
/** |
745 |
* ccs_read_manager_policy - Read manager policy. |
* ccs_read_manager - Read manager policy. |
746 |
* |
* |
747 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
748 |
* |
* |
749 |
* Caller holds ccs_read_lock(). |
* Caller holds ccs_read_lock(). |
750 |
*/ |
*/ |
751 |
static void ccs_read_manager_policy(struct ccs_io_buffer *head) |
static void ccs_read_manager(struct ccs_io_buffer *head) |
752 |
{ |
{ |
753 |
struct list_head *pos; |
struct list_head *pos; |
754 |
if (head->read_eof) |
if (head->read_eof) |
755 |
return; |
return; |
756 |
list_for_each_cookie(pos, head->read_var2, &ccs_policy_manager_list) { |
list_for_each_cookie(pos, head->read_var2, |
757 |
struct ccs_policy_manager_entry *ptr; |
&ccs_policy_list[CCS_ID_MANAGER]) { |
758 |
ptr = list_entry(pos, struct ccs_policy_manager_entry, list); |
struct ccs_manager *ptr |
759 |
if (ptr->is_deleted) |
= list_entry(pos, typeof(*ptr), head.list); |
760 |
|
if (ptr->head.is_deleted) |
761 |
continue; |
continue; |
762 |
if (!ccs_io_printf(head, "%s\n", ptr->manager->name)) |
if (!ccs_io_printf(head, "%s\n", ptr->manager->name)) |
763 |
return; |
return; |
766 |
} |
} |
767 |
|
|
768 |
/** |
/** |
769 |
* ccs_is_policy_manager - Check whether the current process is a policy manager. |
* ccs_manager - Check whether the current process is a policy manager. |
770 |
* |
* |
771 |
* Returns true if the current process is permitted to modify policy |
* Returns true if the current process is permitted to modify policy |
772 |
* via /proc/ccs/ interface. |
* via /proc/ccs/ interface. |
773 |
* |
* |
774 |
* Caller holds ccs_read_lock(). |
* Caller holds ccs_read_lock(). |
775 |
*/ |
*/ |
776 |
static bool ccs_is_policy_manager(void) |
static bool ccs_manager(void) |
777 |
{ |
{ |
778 |
struct ccs_policy_manager_entry *ptr; |
struct ccs_manager *ptr; |
779 |
const char *exe; |
const char *exe; |
780 |
struct task_struct *task = current; |
struct task_struct *task = current; |
781 |
const struct ccs_path_info *domainname |
const struct ccs_path_info *domainname |
783 |
bool found = false; |
bool found = false; |
784 |
if (!ccs_policy_loaded) |
if (!ccs_policy_loaded) |
785 |
return true; |
return true; |
786 |
if (task->ccs_flags & CCS_TASK_IS_POLICY_MANAGER) |
if (task->ccs_flags & CCS_TASK_IS_MANAGER) |
787 |
return true; |
return true; |
788 |
if (!ccs_manage_by_non_root && (current_uid() || current_euid())) |
if (!ccs_manage_by_non_root && (current_uid() || current_euid())) |
789 |
return false; |
return false; |
|
list_for_each_entry_rcu(ptr, &ccs_policy_manager_list, list) { |
|
|
if (!ptr->is_deleted && ptr->is_domain |
|
|
&& !ccs_pathcmp(domainname, ptr->manager)) { |
|
|
/* Set manager flag. */ |
|
|
task->ccs_flags |= CCS_TASK_IS_POLICY_MANAGER; |
|
|
return true; |
|
|
} |
|
|
} |
|
790 |
exe = ccs_get_exe(); |
exe = ccs_get_exe(); |
791 |
if (!exe) |
list_for_each_entry_rcu(ptr, &ccs_policy_list[CCS_ID_MANAGER], |
792 |
return false; |
head.list) { |
793 |
list_for_each_entry_rcu(ptr, &ccs_policy_manager_list, list) { |
if (ptr->head.is_deleted) |
794 |
if (!ptr->is_deleted && !ptr->is_domain |
continue; |
795 |
&& !strcmp(exe, ptr->manager->name)) { |
if (ptr->is_domain) { |
796 |
found = true; |
if (ccs_pathcmp(domainname, ptr->manager)) |
797 |
/* Set manager flag. */ |
continue; |
798 |
task->ccs_flags |= CCS_TASK_IS_POLICY_MANAGER; |
} else { |
799 |
break; |
if (!exe || strcmp(exe, ptr->manager->name)) |
800 |
|
continue; |
801 |
} |
} |
802 |
|
/* Set manager flag. */ |
803 |
|
task->ccs_flags |= CCS_TASK_IS_MANAGER; |
804 |
|
found = true; |
805 |
|
break; |
806 |
} |
} |
807 |
if (!found) { /* Reduce error messages. */ |
if (!found) { /* Reduce error messages. */ |
808 |
static pid_t ccs_last_pid; |
static pid_t ccs_last_pid; |
828 |
static char *ccs_find_condition_part(char *data) |
static char *ccs_find_condition_part(char *data) |
829 |
{ |
{ |
830 |
char *cp = strstr(data, " if "); |
char *cp = strstr(data, " if "); |
831 |
if (cp) { |
if (!cp) |
|
while (1) { |
|
|
char *cp2 = strstr(cp + 3, " if "); |
|
|
if (!cp2) |
|
|
break; |
|
|
cp = cp2; |
|
|
} |
|
|
*cp++ = '\0'; |
|
|
} else { |
|
832 |
cp = strstr(data, " ; set "); |
cp = strstr(data, " ; set "); |
833 |
if (cp) |
if (cp) |
834 |
*cp++ = '\0'; |
*cp++ = '\0'; |
|
} |
|
835 |
return cp; |
return cp; |
836 |
} |
} |
837 |
|
|
838 |
/** |
/** |
839 |
* ccs_is_select_one - Parse select command. |
* ccs_select_one - Parse select command. |
840 |
* |
* |
841 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
842 |
* @data: String to parse. |
* @data: String to parse. |
845 |
* |
* |
846 |
* Caller holds ccs_read_lock(). |
* Caller holds ccs_read_lock(). |
847 |
*/ |
*/ |
848 |
static bool ccs_is_select_one(struct ccs_io_buffer *head, const char *data) |
static bool ccs_select_one(struct ccs_io_buffer *head, const char *data) |
849 |
{ |
{ |
850 |
unsigned int pid; |
unsigned int pid; |
851 |
struct ccs_domain_info *domain = NULL; |
struct ccs_domain_info *domain = NULL; |
871 |
domain = ccs_task_domain(p); |
domain = ccs_task_domain(p); |
872 |
ccs_tasklist_unlock(); |
ccs_tasklist_unlock(); |
873 |
} else if (!strncmp(data, "domain=", 7)) { |
} else if (!strncmp(data, "domain=", 7)) { |
874 |
if (ccs_is_domain_def(data + 7)) |
if (ccs_domain_def(data + 7)) |
875 |
domain = ccs_find_domain(data + 7); |
domain = ccs_find_domain(data + 7); |
876 |
} else |
} else |
877 |
return false; |
return false; |
900 |
return true; |
return true; |
901 |
} |
} |
902 |
|
|
903 |
static int ccs_write_domain_policy2(char *data, struct ccs_domain_info *domain, |
static int ccs_write_domain2(char *data, struct ccs_domain_info *domain, |
904 |
struct ccs_condition *cond, |
const bool is_delete) |
905 |
const bool is_delete) |
{ |
906 |
{ |
static const struct { |
907 |
if (ccs_str_starts(&data, CCS_KEYWORD_ALLOW_CAPABILITY)) |
const char *keyword; |
908 |
return ccs_write_capability_policy(data, domain, cond, |
int (*write) (char *, struct ccs_domain_info *, |
909 |
is_delete); |
struct ccs_condition *, const bool); |
910 |
if (ccs_str_starts(&data, CCS_KEYWORD_ALLOW_NETWORK)) |
} ccs_callback[5] = { |
911 |
return ccs_write_network_policy(data, domain, cond, is_delete); |
{ CCS_KEYWORD_ALLOW_NETWORK, ccs_write_network }, |
912 |
if (ccs_str_starts(&data, CCS_KEYWORD_ALLOW_SIGNAL)) |
{ CCS_KEYWORD_ALLOW_ENV, ccs_write_env }, |
913 |
return ccs_write_signal_policy(data, domain, cond, is_delete); |
{ CCS_KEYWORD_ALLOW_CAPABILITY, ccs_write_capability }, |
914 |
if (ccs_str_starts(&data, CCS_KEYWORD_ALLOW_ENV)) |
{ CCS_KEYWORD_ALLOW_SIGNAL, ccs_write_signal }, |
915 |
return ccs_write_env_policy(data, domain, cond, is_delete); |
{ CCS_KEYWORD_ALLOW_MOUNT, ccs_write_mount } |
916 |
if (ccs_str_starts(&data, CCS_KEYWORD_ALLOW_MOUNT)) |
}; |
917 |
return ccs_write_mount_policy(data, domain, cond, is_delete); |
int (*write) (char *, struct ccs_domain_info *, struct ccs_condition *, |
918 |
return ccs_write_file_policy(data, domain, cond, is_delete); |
const bool) = ccs_write_file; |
919 |
|
int error; |
920 |
|
u8 i; |
921 |
|
struct ccs_condition *cond = NULL; |
922 |
|
char *cp = ccs_find_condition_part(data); |
923 |
|
if (cp) { |
924 |
|
cond = ccs_get_condition(cp); |
925 |
|
if (!cond) |
926 |
|
return -EINVAL; |
927 |
|
} |
928 |
|
for (i = 0; i < 5; i++) { |
929 |
|
if (!ccs_str_starts(&data, ccs_callback[i].keyword)) |
930 |
|
continue; |
931 |
|
write = ccs_callback[i].write; |
932 |
|
break; |
933 |
|
} |
934 |
|
error = write(data, domain, cond, is_delete); |
935 |
|
if (cond) |
936 |
|
ccs_put_condition(cond); |
937 |
|
return error; |
938 |
} |
} |
939 |
|
|
940 |
|
static const char *ccs_dif[CCS_MAX_DOMAIN_INFO_FLAGS] = { |
941 |
|
[CCS_DIF_QUOTA_WARNED] = CCS_KEYWORD_QUOTA_EXCEEDED "\n", |
942 |
|
[CCS_DIF_IGNORE_GLOBAL] = CCS_KEYWORD_IGNORE_GLOBAL "\n", |
943 |
|
[CCS_DIF_IGNORE_GLOBAL_ALLOW_READ] |
944 |
|
= CCS_KEYWORD_IGNORE_GLOBAL_ALLOW_READ "\n", |
945 |
|
[CCS_DIF_IGNORE_GLOBAL_ALLOW_ENV] |
946 |
|
= CCS_KEYWORD_IGNORE_GLOBAL_ALLOW_ENV "\n", |
947 |
|
[CCS_DIF_TRANSITION_FAILED] = CCS_KEYWORD_TRANSITION_FAILED "\n" |
948 |
|
}; |
949 |
|
|
950 |
/** |
/** |
951 |
* ccs_write_domain_policy - Write domain policy. |
* ccs_write_domain - Write domain policy. |
952 |
* |
* |
953 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
954 |
* |
* |
955 |
* Returns 0 on success, negative value otherwise. |
* Returns 0 on success, negative value otherwise. |
956 |
*/ |
*/ |
957 |
static int ccs_write_domain_policy(struct ccs_io_buffer *head) |
static int ccs_write_domain(struct ccs_io_buffer *head) |
958 |
{ |
{ |
959 |
char *data = head->write_buf; |
char *data = head->write_buf; |
960 |
struct ccs_domain_info *domain = head->write_var1; |
struct ccs_domain_info *domain = head->write_var1; |
961 |
bool is_delete = false; |
bool is_delete = false; |
962 |
bool is_select = false; |
bool is_select = false; |
963 |
unsigned int profile; |
unsigned int profile; |
|
struct ccs_condition *cond = NULL; |
|
|
char *cp; |
|
|
int error; |
|
964 |
if (ccs_str_starts(&data, CCS_KEYWORD_DELETE)) |
if (ccs_str_starts(&data, CCS_KEYWORD_DELETE)) |
965 |
is_delete = true; |
is_delete = true; |
966 |
else if (ccs_str_starts(&data, CCS_KEYWORD_SELECT)) |
else if (ccs_str_starts(&data, CCS_KEYWORD_SELECT)) |
967 |
is_select = true; |
is_select = true; |
968 |
if (is_select && ccs_is_select_one(head, data)) |
if (is_select && ccs_select_one(head, data)) |
969 |
return 0; |
return 0; |
970 |
/* Don't allow updating policies by non manager programs. */ |
/* Don't allow updating policies by non manager programs. */ |
971 |
if (!ccs_is_policy_manager()) |
if (!ccs_manager()) |
972 |
return -EPERM; |
return -EPERM; |
973 |
if (ccs_is_domain_def(data)) { |
if (ccs_domain_def(data)) { |
974 |
domain = NULL; |
domain = NULL; |
975 |
if (is_delete) |
if (is_delete) |
976 |
ccs_delete_domain(data); |
ccs_delete_domain(data); |
977 |
else if (is_select) |
else if (is_select) |
978 |
domain = ccs_find_domain(data); |
domain = ccs_find_domain(data); |
979 |
else |
else |
980 |
domain = ccs_find_or_assign_new_domain(data, 0); |
domain = ccs_assign_domain(data, 0); |
981 |
head->write_var1 = domain; |
head->write_var1 = domain; |
982 |
return 0; |
return 0; |
983 |
} |
} |
990 |
domain->profile = (u8) profile; |
domain->profile = (u8) profile; |
991 |
return 0; |
return 0; |
992 |
} |
} |
993 |
if (!strcmp(data, CCS_KEYWORD_IGNORE_GLOBAL_ALLOW_READ)) { |
for (profile = 0; profile < CCS_MAX_DOMAIN_INFO_FLAGS; profile++) { |
994 |
domain->ignore_global_allow_read = !is_delete; |
const char *cp = ccs_dif[profile]; |
995 |
return 0; |
if (strncmp(data, cp, strlen(cp) - 1)) |
996 |
} |
continue; |
997 |
if (!strcmp(data, CCS_KEYWORD_IGNORE_GLOBAL_ALLOW_ENV)) { |
domain->flags[profile] = !is_delete; |
|
domain->ignore_global_allow_env = !is_delete; |
|
|
return 0; |
|
|
} |
|
|
if (!strcmp(data, CCS_KEYWORD_QUOTA_EXCEEDED)) { |
|
|
domain->quota_warned = !is_delete; |
|
|
return 0; |
|
|
} |
|
|
if (!strcmp(data, CCS_KEYWORD_TRANSITION_FAILED)) { |
|
|
domain->domain_transition_failed = !is_delete; |
|
998 |
return 0; |
return 0; |
999 |
} |
} |
1000 |
cp = ccs_find_condition_part(data); |
return ccs_write_domain2(data, domain, is_delete); |
|
if (cp) { |
|
|
cond = ccs_get_condition(cp); |
|
|
if (!cond) |
|
|
return -EINVAL; |
|
|
} |
|
|
error = ccs_write_domain_policy2(data, domain, cond, is_delete); |
|
|
if (cond) |
|
|
ccs_put_condition(cond); |
|
|
return error; |
|
1001 |
} |
} |
1002 |
|
|
1003 |
/** |
/** |
1037 |
return ccs_io_printf(head, "\"%s\"", ptr->filename->name); |
return ccs_io_printf(head, "\"%s\"", ptr->filename->name); |
1038 |
} |
} |
1039 |
|
|
1040 |
|
static void ccs_print_number(char *buffer, int buffer_len, |
1041 |
|
const struct ccs_number_union *ptr) |
1042 |
|
{ |
1043 |
|
int i; |
1044 |
|
unsigned long min = ptr->values[0]; |
1045 |
|
const unsigned long max = ptr->values[1]; |
1046 |
|
u8 min_type = ptr->value_type[0]; |
1047 |
|
const u8 max_type = ptr->value_type[1]; |
1048 |
|
memset(buffer, 0, buffer_len); |
1049 |
|
buffer_len -= 2; |
1050 |
|
for (i = 0; i < 2; i++) { |
1051 |
|
int len; |
1052 |
|
switch (min_type) { |
1053 |
|
case CCS_VALUE_TYPE_HEXADECIMAL: |
1054 |
|
snprintf(buffer, buffer_len, "0x%lX", min); |
1055 |
|
break; |
1056 |
|
case CCS_VALUE_TYPE_OCTAL: |
1057 |
|
snprintf(buffer, buffer_len, "0%lo", min); |
1058 |
|
break; |
1059 |
|
default: |
1060 |
|
snprintf(buffer, buffer_len, "%lu", min); |
1061 |
|
break; |
1062 |
|
} |
1063 |
|
if (min == max && min_type == max_type) |
1064 |
|
break; |
1065 |
|
len = strlen(buffer); |
1066 |
|
buffer[len++] = '-'; |
1067 |
|
buffer += len; |
1068 |
|
buffer_len -= len; |
1069 |
|
min_type = max_type; |
1070 |
|
min = max; |
1071 |
|
} |
1072 |
|
} |
1073 |
|
|
1074 |
/** |
/** |
1075 |
* ccs_print_number_union_common - Print a ccs_number_union. |
* ccs_print_number_union_common - Print a ccs_number_union. |
1076 |
* |
* |
1084 |
const struct ccs_number_union *ptr, |
const struct ccs_number_union *ptr, |
1085 |
const bool need_space) |
const bool need_space) |
1086 |
{ |
{ |
1087 |
unsigned long min; |
char buffer[128]; |
|
unsigned long max; |
|
|
u8 min_type; |
|
|
u8 max_type; |
|
1088 |
if (need_space && !ccs_io_printf(head, " ")) |
if (need_space && !ccs_io_printf(head, " ")) |
1089 |
return false; |
return false; |
1090 |
if (ptr->is_group) |
if (ptr->is_group) |
1091 |
return ccs_io_printf(head, "@%s", |
return ccs_io_printf(head, "@%s", |
1092 |
ptr->group->group_name->name); |
ptr->group->group_name->name); |
1093 |
min_type = ptr->min_type; |
ccs_print_number(buffer, sizeof(buffer), ptr); |
1094 |
max_type = ptr->max_type; |
return ccs_io_printf(head, "%s", buffer); |
|
min = ptr->values[0]; |
|
|
max = ptr->values[1]; |
|
|
switch (min_type) { |
|
|
case CCS_VALUE_TYPE_HEXADECIMAL: |
|
|
if (!ccs_io_printf(head, "0x%lX", min)) |
|
|
return false; |
|
|
break; |
|
|
case CCS_VALUE_TYPE_OCTAL: |
|
|
if (!ccs_io_printf(head, "0%lo", min)) |
|
|
return false; |
|
|
break; |
|
|
default: |
|
|
if (!ccs_io_printf(head, "%lu", min)) |
|
|
return false; |
|
|
break; |
|
|
} |
|
|
if (min == max && min_type == max_type) |
|
|
return true; |
|
|
switch (max_type) { |
|
|
case CCS_VALUE_TYPE_HEXADECIMAL: |
|
|
return ccs_io_printf(head, "-0x%lX", max); |
|
|
case CCS_VALUE_TYPE_OCTAL: |
|
|
return ccs_io_printf(head, "-0%lo", max); |
|
|
default: |
|
|
return ccs_io_printf(head, "-%lu", max); |
|
|
} |
|
1095 |
} |
} |
1096 |
|
|
1097 |
/** |
/** |
1102 |
* |
* |
1103 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1104 |
*/ |
*/ |
1105 |
bool ccs_print_number_union(struct ccs_io_buffer *head, |
static bool ccs_print_number_union(struct ccs_io_buffer *head, |
1106 |
const struct ccs_number_union *ptr) |
const struct ccs_number_union *ptr) |
1107 |
{ |
{ |
1108 |
return ccs_print_number_union_common(head, ptr, true); |
return ccs_print_number_union_common(head, ptr, true); |
1109 |
} |
} |
1126 |
* ccs_print_condition - Print condition part. |
* ccs_print_condition - Print condition part. |
1127 |
* |
* |
1128 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1129 |
* @cond: Pointer to "struct ccs_condition". May be NULL. |
* @cond: Pointer to "struct ccs_condition". Maybe NULL. |
1130 |
* |
* |
1131 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1132 |
*/ |
*/ |
1136 |
const struct ccs_condition_element *condp; |
const struct ccs_condition_element *condp; |
1137 |
const struct ccs_number_union *numbers_p; |
const struct ccs_number_union *numbers_p; |
1138 |
const struct ccs_name_union *names_p; |
const struct ccs_name_union *names_p; |
1139 |
const struct ccs_argv_entry *argv; |
const struct ccs_argv *argv; |
1140 |
const struct ccs_envp_entry *envp; |
const struct ccs_envp *envp; |
1141 |
u16 condc; |
u16 condc; |
1142 |
u16 i; |
u16 i; |
1143 |
u16 j; |
u16 j; |
1149 |
numbers_p = (const struct ccs_number_union *) (condp + condc); |
numbers_p = (const struct ccs_number_union *) (condp + condc); |
1150 |
names_p = (const struct ccs_name_union *) |
names_p = (const struct ccs_name_union *) |
1151 |
(numbers_p + cond->numbers_count); |
(numbers_p + cond->numbers_count); |
1152 |
argv = (const struct ccs_argv_entry *) (names_p + cond->names_count); |
argv = (const struct ccs_argv *) (names_p + cond->names_count); |
1153 |
envp = (const struct ccs_envp_entry *) (argv + cond->argc); |
envp = (const struct ccs_envp *) (argv + cond->argc); |
1154 |
memset(buffer, 0, sizeof(buffer)); |
memset(buffer, 0, sizeof(buffer)); |
1155 |
if (condc && !ccs_io_printf(head, "%s", " if")) |
if (condc && !ccs_io_printf(head, "%s", " if")) |
1156 |
goto out; |
goto out; |
1226 |
cond->post_state[j])) |
cond->post_state[j])) |
1227 |
goto out; |
goto out; |
1228 |
} |
} |
1229 |
|
if (i & (1 << 4)) { |
1230 |
|
if (!ccs_io_printf(head, " audit=%s", |
1231 |
|
ccs_yesno(cond->post_state[4]))) |
1232 |
|
goto out; |
1233 |
|
} |
1234 |
no_condition: |
no_condition: |
1235 |
if (ccs_io_printf(head, "\n")) |
if (ccs_io_printf(head, "\n")) |
1236 |
return true; |
return true; |
1243 |
* |
* |
1244 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1245 |
* @ptr: Pointer to "struct ccs_path_acl". |
* @ptr: Pointer to "struct ccs_path_acl". |
|
* @cond: Pointer to "struct ccs_condition". May be NULL. |
|
1246 |
* |
* |
1247 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1248 |
*/ |
*/ |
1249 |
static bool ccs_print_path_acl(struct ccs_io_buffer *head, |
static bool ccs_print_path_acl(struct ccs_io_buffer *head, |
1250 |
struct ccs_path_acl *ptr, |
const struct ccs_path_acl *ptr) |
|
const struct ccs_condition *cond) |
|
1251 |
{ |
{ |
1252 |
int pos; |
int pos; |
1253 |
u8 bit; |
u8 bit; |
1263 |
&& (perm & (1 << CCS_TYPE_READ_WRITE))) |
&& (perm & (1 << CCS_TYPE_READ_WRITE))) |
1264 |
continue; |
continue; |
1265 |
pos = head->read_avail; |
pos = head->read_avail; |
1266 |
if (!ccs_io_printf(head, "allow_%s", ccs_path2keyword(bit)) || |
if (!ccs_io_printf(head, "allow_%s", ccs_path_keyword[bit]) || |
1267 |
!ccs_print_name_union(head, &ptr->name) || |
!ccs_print_name_union(head, &ptr->name) || |
1268 |
!ccs_print_condition(head, cond)) { |
!ccs_print_condition(head, ptr->head.cond)) { |
1269 |
head->read_bit = bit; |
head->read_bit = bit; |
1270 |
head->read_avail = pos; |
head->read_avail = pos; |
1271 |
return false; |
return false; |
1276 |
} |
} |
1277 |
|
|
1278 |
/** |
/** |
1279 |
* ccs_print_path_number3_acl - Print a path_number3 ACL entry. |
* ccs_print_mkdev_acl - Print a mkdev ACL entry. |
1280 |
* |
* |
1281 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1282 |
* @ptr: Pointer to "struct ccs_path_number3_acl". |
* @ptr: Pointer to "struct ccs_mkdev_acl". |
|
* @cond: Pointer to "struct ccs_condition". May be NULL. |
|
1283 |
* |
* |
1284 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1285 |
*/ |
*/ |
1286 |
static bool ccs_print_path_number3_acl(struct ccs_io_buffer *head, |
static bool ccs_print_mkdev_acl(struct ccs_io_buffer *head, |
1287 |
struct ccs_path_number3_acl *ptr, |
const struct ccs_mkdev_acl *ptr) |
|
const struct ccs_condition *cond) |
|
1288 |
{ |
{ |
1289 |
int pos; |
int pos; |
1290 |
u8 bit; |
u8 bit; |
1291 |
const u16 perm = ptr->perm; |
const u16 perm = ptr->perm; |
1292 |
for (bit = head->read_bit; bit < CCS_MAX_PATH_NUMBER3_OPERATION; |
for (bit = head->read_bit; bit < CCS_MAX_MKDEV_OPERATION; |
1293 |
bit++) { |
bit++) { |
1294 |
if (!(perm & (1 << bit))) |
if (!(perm & (1 << bit))) |
1295 |
continue; |
continue; |
1296 |
pos = head->read_avail; |
pos = head->read_avail; |
1297 |
if (!ccs_io_printf(head, "allow_%s", |
if (!ccs_io_printf(head, "allow_%s", ccs_mkdev_keyword[bit]) || |
|
ccs_path_number32keyword(bit)) || |
|
1298 |
!ccs_print_name_union(head, &ptr->name) || |
!ccs_print_name_union(head, &ptr->name) || |
1299 |
!ccs_print_number_union(head, &ptr->mode) || |
!ccs_print_number_union(head, &ptr->mode) || |
1300 |
!ccs_print_number_union(head, &ptr->major) || |
!ccs_print_number_union(head, &ptr->major) || |
1301 |
!ccs_print_number_union(head, &ptr->minor) || |
!ccs_print_number_union(head, &ptr->minor) || |
1302 |
!ccs_print_condition(head, cond)) { |
!ccs_print_condition(head, ptr->head.cond)) { |
1303 |
head->read_bit = bit; |
head->read_bit = bit; |
1304 |
head->read_avail = pos; |
head->read_avail = pos; |
1305 |
return false; |
return false; |
1314 |
* |
* |
1315 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1316 |
* @ptr: Pointer to "struct ccs_path2_acl". |
* @ptr: Pointer to "struct ccs_path2_acl". |
|
* @cond: Pointer to "struct ccs_condition". May be NULL. |
|
1317 |
* |
* |
1318 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1319 |
*/ |
*/ |
1320 |
static bool ccs_print_path2_acl(struct ccs_io_buffer *head, |
static bool ccs_print_path2_acl(struct ccs_io_buffer *head, |
1321 |
struct ccs_path2_acl *ptr, |
const struct ccs_path2_acl *ptr) |
|
const struct ccs_condition *cond) |
|
1322 |
{ |
{ |
1323 |
int pos; |
int pos; |
1324 |
u8 bit; |
u8 bit; |
1327 |
if (!(perm & (1 << bit))) |
if (!(perm & (1 << bit))) |
1328 |
continue; |
continue; |
1329 |
pos = head->read_avail; |
pos = head->read_avail; |
1330 |
if (!ccs_io_printf(head, "allow_%s", |
if (!ccs_io_printf(head, "allow_%s", ccs_path2_keyword[bit]) || |
|
ccs_path22keyword(bit)) || |
|
1331 |
!ccs_print_name_union(head, &ptr->name1) || |
!ccs_print_name_union(head, &ptr->name1) || |
1332 |
!ccs_print_name_union(head, &ptr->name2) || |
!ccs_print_name_union(head, &ptr->name2) || |
1333 |
!ccs_print_condition(head, cond)) { |
!ccs_print_condition(head, ptr->head.cond)) { |
1334 |
head->read_bit = bit; |
head->read_bit = bit; |
1335 |
head->read_avail = pos; |
head->read_avail = pos; |
1336 |
return false; |
return false; |
1345 |
* |
* |
1346 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1347 |
* @ptr: Pointer to "struct ccs_path_number_acl". |
* @ptr: Pointer to "struct ccs_path_number_acl". |
|
* @cond: Pointer to "struct ccs_condition". May be NULL. |
|
1348 |
* |
* |
1349 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1350 |
*/ |
*/ |
1351 |
static bool ccs_print_path_number_acl(struct ccs_io_buffer *head, |
static bool ccs_print_path_number_acl(struct ccs_io_buffer *head, |
1352 |
struct ccs_path_number_acl *ptr, |
const struct ccs_path_number_acl *ptr) |
|
const struct ccs_condition *cond) |
|
1353 |
{ |
{ |
1354 |
int pos; |
int pos; |
1355 |
u8 bit; |
u8 bit; |
1360 |
continue; |
continue; |
1361 |
pos = head->read_avail; |
pos = head->read_avail; |
1362 |
if (!ccs_io_printf(head, "allow_%s", |
if (!ccs_io_printf(head, "allow_%s", |
1363 |
ccs_path_number2keyword(bit)) || |
ccs_path_number_keyword[bit]) || |
1364 |
!ccs_print_name_union(head, &ptr->name) || |
!ccs_print_name_union(head, &ptr->name) || |
1365 |
!ccs_print_number_union(head, &ptr->number) || |
!ccs_print_number_union(head, &ptr->number) || |
1366 |
!ccs_print_condition(head, cond)) { |
!ccs_print_condition(head, ptr->head.cond)) { |
1367 |
head->read_bit = bit; |
head->read_bit = bit; |
1368 |
head->read_avail = pos; |
head->read_avail = pos; |
1369 |
return false; |
return false; |
1378 |
* |
* |
1379 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1380 |
* @ptr: Pointer to "struct ccs_env_acl". |
* @ptr: Pointer to "struct ccs_env_acl". |
|
* @cond: Pointer to "struct ccs_condition". May be NULL. |
|
1381 |
* |
* |
1382 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1383 |
*/ |
*/ |
1384 |
static bool ccs_print_env_acl(struct ccs_io_buffer *head, |
static bool ccs_print_env_acl(struct ccs_io_buffer *head, |
1385 |
struct ccs_env_acl *ptr, |
const struct ccs_env_acl *ptr) |
|
const struct ccs_condition *cond) |
|
1386 |
{ |
{ |
1387 |
const int pos = head->read_avail; |
const int pos = head->read_avail; |
1388 |
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_ENV "%s", ptr->env->name) || |
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_ENV "%s", ptr->env->name) || |
1389 |
!ccs_print_condition(head, cond)) { |
!ccs_print_condition(head, ptr->head.cond)) { |
1390 |
head->read_avail = pos; |
head->read_avail = pos; |
1391 |
return false; |
return false; |
1392 |
} |
} |
1398 |
* |
* |
1399 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1400 |
* @ptr: Pointer to "struct ccs_capability_acl". |
* @ptr: Pointer to "struct ccs_capability_acl". |
|
* @cond: Pointer to "struct ccs_condition". May be NULL. |
|
1401 |
* |
* |
1402 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1403 |
*/ |
*/ |
1404 |
static bool ccs_print_capability_acl(struct ccs_io_buffer *head, |
static bool ccs_print_capability_acl(struct ccs_io_buffer *head, |
1405 |
struct ccs_capability_acl *ptr, |
const struct ccs_capability_acl *ptr) |
|
const struct ccs_condition *cond) |
|
1406 |
{ |
{ |
1407 |
const int pos = head->read_avail; |
const int pos = head->read_avail; |
1408 |
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_CAPABILITY "%s", |
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_CAPABILITY "%s", |
1409 |
ccs_cap2keyword(ptr->operation)) || |
ccs_cap2keyword(ptr->operation)) || |
1410 |
!ccs_print_condition(head, cond)) { |
!ccs_print_condition(head, ptr->head.cond)) { |
1411 |
head->read_avail = pos; |
head->read_avail = pos; |
1412 |
return false; |
return false; |
1413 |
} |
} |
1415 |
} |
} |
1416 |
|
|
1417 |
/** |
/** |
|
* ccs_print_ipv4_entry - Print IPv4 address of a network ACL entry. |
|
|
* |
|
|
* @head: Pointer to "struct ccs_io_buffer". |
|
|
* @ptr: Pointer to "struct ccs_ip_network_acl". |
|
|
* |
|
|
* Returns true on success, false otherwise. |
|
|
*/ |
|
|
static bool ccs_print_ipv4_entry(struct ccs_io_buffer *head, |
|
|
struct ccs_ip_network_acl *ptr) |
|
|
{ |
|
|
const u32 min_address = ptr->address.ipv4.min; |
|
|
const u32 max_address = ptr->address.ipv4.max; |
|
|
if (!ccs_io_printf(head, "%u.%u.%u.%u", HIPQUAD(min_address))) |
|
|
return false; |
|
|
if (min_address != max_address |
|
|
&& !ccs_io_printf(head, "-%u.%u.%u.%u", HIPQUAD(max_address))) |
|
|
return false; |
|
|
return true; |
|
|
} |
|
|
|
|
|
/** |
|
|
* ccs_print_ipv6_entry - Print IPv6 address of a network ACL entry. |
|
|
* |
|
|
* @head: Pointer to "struct ccs_io_buffer". |
|
|
* @ptr: Pointer to "struct ccs_ip_network_acl". |
|
|
* |
|
|
* Returns true on success, false otherwise. |
|
|
*/ |
|
|
static bool ccs_print_ipv6_entry(struct ccs_io_buffer *head, |
|
|
struct ccs_ip_network_acl *ptr) |
|
|
{ |
|
|
char buf[64]; |
|
|
const struct in6_addr *min_address = ptr->address.ipv6.min; |
|
|
const struct in6_addr *max_address = ptr->address.ipv6.max; |
|
|
ccs_print_ipv6(buf, sizeof(buf), min_address); |
|
|
if (!ccs_io_printf(head, "%s", buf)) |
|
|
return false; |
|
|
if (min_address != max_address) { |
|
|
ccs_print_ipv6(buf, sizeof(buf), max_address); |
|
|
if (!ccs_io_printf(head, "-%s", buf)) |
|
|
return false; |
|
|
} |
|
|
return true; |
|
|
} |
|
|
|
|
|
/** |
|
1418 |
* ccs_print_network_acl - Print a network ACL entry. |
* ccs_print_network_acl - Print a network ACL entry. |
1419 |
* |
* |
1420 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1421 |
* @ptr: Pointer to "struct ccs_ip_network_acl". |
* @ptr: Pointer to "struct ccs_ip_network_acl". |
|
* @cond: Pointer to "struct ccs_condition". May be NULL. |
|
1422 |
* |
* |
1423 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1424 |
*/ |
*/ |
1425 |
static bool ccs_print_network_acl(struct ccs_io_buffer *head, |
static bool ccs_print_network_acl(struct ccs_io_buffer *head, |
1426 |
struct ccs_ip_network_acl *ptr, |
const struct ccs_ip_network_acl *ptr) |
|
const struct ccs_condition *cond) |
|
1427 |
{ |
{ |
1428 |
int pos; |
int pos; |
1429 |
u8 bit; |
u8 bit; |
1430 |
const u16 perm = ptr->perm; |
const u8 perm = ptr->perm; |
1431 |
|
char buf[128]; |
1432 |
for (bit = head->read_bit; bit < CCS_MAX_NETWORK_OPERATION; bit++) { |
for (bit = head->read_bit; bit < CCS_MAX_NETWORK_OPERATION; bit++) { |
1433 |
|
const char *w[2] = { buf, "" }; |
1434 |
if (!(perm & (1 << bit))) |
if (!(perm & (1 << bit))) |
1435 |
continue; |
continue; |
1436 |
pos = head->read_avail; |
pos = head->read_avail; |
|
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_NETWORK "%s ", |
|
|
ccs_net2keyword(bit))) |
|
|
goto out; |
|
1437 |
switch (ptr->address_type) { |
switch (ptr->address_type) { |
1438 |
case CCS_IP_ADDRESS_TYPE_ADDRESS_GROUP: |
case CCS_IP_ADDRESS_TYPE_ADDRESS_GROUP: |
1439 |
if (!ccs_io_printf(head, "@%s", ptr->address.group-> |
w[0] = "@"; |
1440 |
group_name->name)) |
w[1] = ptr->address.group->group_name->name; |
|
goto out; |
|
1441 |
break; |
break; |
1442 |
case CCS_IP_ADDRESS_TYPE_IPv4: |
case CCS_IP_ADDRESS_TYPE_IPv4: |
1443 |
if (!ccs_print_ipv4_entry(head, ptr)) |
ccs_print_ipv4(buf, sizeof(buf), ptr->address.ipv4.min, |
1444 |
goto out; |
ptr->address.ipv4.max); |
1445 |
break; |
break; |
1446 |
case CCS_IP_ADDRESS_TYPE_IPv6: |
case CCS_IP_ADDRESS_TYPE_IPv6: |
1447 |
if (!ccs_print_ipv6_entry(head, ptr)) |
ccs_print_ipv6(buf, sizeof(buf), ptr->address.ipv6.min, |
1448 |
goto out; |
ptr->address.ipv6.max); |
1449 |
break; |
break; |
1450 |
} |
} |
1451 |
if (!ccs_print_number_union(head, &ptr->port) || |
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_NETWORK "%s %s%s", |
1452 |
!ccs_print_condition(head, cond)) |
ccs_net_keyword[bit], w[0], w[1]) || |
1453 |
|
!ccs_print_number_union(head, &ptr->port) || |
1454 |
|
!ccs_print_condition(head, ptr->head.cond)) |
1455 |
goto out; |
goto out; |
1456 |
} |
} |
1457 |
head->read_bit = 0; |
head->read_bit = 0; |
1467 |
* |
* |
1468 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1469 |
* @ptr: Pointer to "struct signale_acl". |
* @ptr: Pointer to "struct signale_acl". |
|
* @cond: Pointer to "struct ccs_condition". May be NULL. |
|
1470 |
* |
* |
1471 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1472 |
*/ |
*/ |
1473 |
static bool ccs_print_signal_acl(struct ccs_io_buffer *head, |
static bool ccs_print_signal_acl(struct ccs_io_buffer *head, |
1474 |
struct ccs_signal_acl *ptr, |
const struct ccs_signal_acl *ptr) |
|
const struct ccs_condition *cond) |
|
1475 |
{ |
{ |
1476 |
const int pos = head->read_avail; |
const int pos = head->read_avail; |
1477 |
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_SIGNAL "%u %s", |
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_SIGNAL "%u %s", |
1478 |
ptr->sig, ptr->domainname->name) || |
ptr->sig, ptr->domainname->name) || |
1479 |
!ccs_print_condition(head, cond)) { |
!ccs_print_condition(head, ptr->head.cond)) { |
1480 |
head->read_avail = pos; |
head->read_avail = pos; |
1481 |
return false; |
return false; |
1482 |
} |
} |
1484 |
} |
} |
1485 |
|
|
1486 |
/** |
/** |
1487 |
* ccs_print_execute_handler_record - Print an execute handler ACL entry. |
* ccs_print_execute_handler - Print an execute handler ACL entry. |
1488 |
* |
* |
1489 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1490 |
* @keyword: Name of the keyword. |
* @keyword: Name of the keyword. |
1491 |
* @ptr: Pointer to "struct ccs_execute_handler_record". |
* @ptr: Pointer to "struct ccs_execute_handler". |
1492 |
* |
* |
1493 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1494 |
*/ |
*/ |
1495 |
static bool ccs_print_execute_handler_record(struct ccs_io_buffer *head, |
static bool ccs_print_execute_handler(struct ccs_io_buffer *head, |
1496 |
const char *keyword, |
const char *keyword, |
1497 |
struct ccs_execute_handler_record |
const struct ccs_execute_handler *ptr) |
|
*ptr) |
|
1498 |
{ |
{ |
1499 |
return ccs_io_printf(head, "%s %s\n", keyword, ptr->handler->name); |
const int pos = head->read_avail; |
1500 |
|
if (!ccs_io_printf(head, "%s %s", keyword, ptr->handler->name) || |
1501 |
|
!ccs_print_condition(head, ptr->head.cond)) { |
1502 |
|
head->read_avail = pos; |
1503 |
|
return false; |
1504 |
|
} |
1505 |
|
return true; |
1506 |
} |
} |
1507 |
|
|
1508 |
/** |
/** |
1510 |
* |
* |
1511 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1512 |
* @ptr: Pointer to "struct ccs_mount_acl". |
* @ptr: Pointer to "struct ccs_mount_acl". |
|
* @cond: Pointer to "struct ccs_condition". May be NULL. |
|
1513 |
* |
* |
1514 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1515 |
*/ |
*/ |
1516 |
static bool ccs_print_mount_acl(struct ccs_io_buffer *head, |
static bool ccs_print_mount_acl(struct ccs_io_buffer *head, |
1517 |
struct ccs_mount_acl *ptr, |
const struct ccs_mount_acl *ptr) |
|
const struct ccs_condition *cond) |
|
1518 |
{ |
{ |
1519 |
const int pos = head->read_avail; |
const int pos = head->read_avail; |
1520 |
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_MOUNT) || |
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_MOUNT) || |
1522 |
!ccs_print_name_union(head, &ptr->dir_name) || |
!ccs_print_name_union(head, &ptr->dir_name) || |
1523 |
!ccs_print_name_union(head, &ptr->fs_type) || |
!ccs_print_name_union(head, &ptr->fs_type) || |
1524 |
!ccs_print_number_union(head, &ptr->flags) || |
!ccs_print_number_union(head, &ptr->flags) || |
1525 |
!ccs_print_condition(head, cond)) { |
!ccs_print_condition(head, ptr->head.cond)) { |
1526 |
head->read_avail = pos; |
head->read_avail = pos; |
1527 |
return false; |
return false; |
1528 |
} |
} |
1538 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1539 |
*/ |
*/ |
1540 |
static bool ccs_print_entry(struct ccs_io_buffer *head, |
static bool ccs_print_entry(struct ccs_io_buffer *head, |
1541 |
struct ccs_acl_info *ptr) |
const struct ccs_acl_info *ptr) |
1542 |
{ |
{ |
|
const struct ccs_condition *cond = ptr->cond; |
|
1543 |
const u8 acl_type = ptr->type; |
const u8 acl_type = ptr->type; |
1544 |
if (ptr->is_deleted) |
if (ptr->is_deleted) |
1545 |
return true; |
return true; |
1546 |
if (acl_type == CCS_TYPE_PATH_ACL) { |
if (acl_type == CCS_TYPE_PATH_ACL) { |
1547 |
struct ccs_path_acl *acl |
struct ccs_path_acl *acl |
1548 |
= container_of(ptr, struct ccs_path_acl, head); |
= container_of(ptr, typeof(*acl), head); |
1549 |
return ccs_print_path_acl(head, acl, cond); |
return ccs_print_path_acl(head, acl); |
1550 |
} |
} |
1551 |
if (acl_type == CCS_TYPE_EXECUTE_HANDLER) { |
if (acl_type == CCS_TYPE_EXECUTE_HANDLER || |
1552 |
struct ccs_execute_handler_record *acl |
acl_type == CCS_TYPE_DENIED_EXECUTE_HANDLER) { |
1553 |
= container_of(ptr, struct ccs_execute_handler_record, |
struct ccs_execute_handler *acl |
1554 |
head); |
= container_of(ptr, typeof(*acl), head); |
1555 |
const char *keyword = CCS_KEYWORD_EXECUTE_HANDLER; |
const char *keyword = acl_type == CCS_TYPE_EXECUTE_HANDLER ? |
1556 |
return ccs_print_execute_handler_record(head, keyword, acl); |
CCS_KEYWORD_EXECUTE_HANDLER : |
1557 |
} |
CCS_KEYWORD_DENIED_EXECUTE_HANDLER; |
1558 |
if (acl_type == CCS_TYPE_DENIED_EXECUTE_HANDLER) { |
return ccs_print_execute_handler(head, keyword, acl); |
|
struct ccs_execute_handler_record *acl |
|
|
= container_of(ptr, struct ccs_execute_handler_record, |
|
|
head); |
|
|
const char *keyword = CCS_KEYWORD_DENIED_EXECUTE_HANDLER; |
|
|
return ccs_print_execute_handler_record(head, keyword, acl); |
|
1559 |
} |
} |
1560 |
if (head->read_execute_only) |
if (head->read_execute_only) |
1561 |
return true; |
return true; |
1562 |
if (acl_type == CCS_TYPE_PATH_NUMBER3_ACL) { |
if (acl_type == CCS_TYPE_MKDEV_ACL) { |
1563 |
struct ccs_path_number3_acl *acl |
struct ccs_mkdev_acl *acl |
1564 |
= container_of(ptr, struct ccs_path_number3_acl, head); |
= container_of(ptr, typeof(*acl), head); |
1565 |
return ccs_print_path_number3_acl(head, acl, cond); |
return ccs_print_mkdev_acl(head, acl); |
1566 |
} |
} |
1567 |
if (acl_type == CCS_TYPE_PATH2_ACL) { |
if (acl_type == CCS_TYPE_PATH2_ACL) { |
1568 |
struct ccs_path2_acl *acl |
struct ccs_path2_acl *acl |
1569 |
= container_of(ptr, struct ccs_path2_acl, head); |
= container_of(ptr, typeof(*acl), head); |
1570 |
return ccs_print_path2_acl(head, acl, cond); |
return ccs_print_path2_acl(head, acl); |
1571 |
} |
} |
1572 |
if (acl_type == CCS_TYPE_PATH_NUMBER_ACL) { |
if (acl_type == CCS_TYPE_PATH_NUMBER_ACL) { |
1573 |
struct ccs_path_number_acl *acl |
struct ccs_path_number_acl *acl |
1574 |
= container_of(ptr, struct ccs_path_number_acl, head); |
= container_of(ptr, typeof(*acl), head); |
1575 |
return ccs_print_path_number_acl(head, acl, cond); |
return ccs_print_path_number_acl(head, acl); |
1576 |
} |
} |
1577 |
if (acl_type == CCS_TYPE_ENV_ACL) { |
if (acl_type == CCS_TYPE_ENV_ACL) { |
1578 |
struct ccs_env_acl *acl |
struct ccs_env_acl *acl |
1579 |
= container_of(ptr, struct ccs_env_acl, head); |
= container_of(ptr, typeof(*acl), head); |
1580 |
return ccs_print_env_acl(head, acl, cond); |
return ccs_print_env_acl(head, acl); |
1581 |
} |
} |
1582 |
if (acl_type == CCS_TYPE_CAPABILITY_ACL) { |
if (acl_type == CCS_TYPE_CAPABILITY_ACL) { |
1583 |
struct ccs_capability_acl *acl |
struct ccs_capability_acl *acl |
1584 |
= container_of(ptr, struct ccs_capability_acl, head); |
= container_of(ptr, typeof(*acl), head); |
1585 |
return ccs_print_capability_acl(head, acl, cond); |
return ccs_print_capability_acl(head, acl); |
1586 |
} |
} |
1587 |
if (acl_type == CCS_TYPE_IP_NETWORK_ACL) { |
if (acl_type == CCS_TYPE_IP_NETWORK_ACL) { |
1588 |
struct ccs_ip_network_acl *acl |
struct ccs_ip_network_acl *acl |
1589 |
= container_of(ptr, struct ccs_ip_network_acl, head); |
= container_of(ptr, typeof(*acl), head); |
1590 |
return ccs_print_network_acl(head, acl, cond); |
return ccs_print_network_acl(head, acl); |
1591 |
} |
} |
1592 |
if (acl_type == CCS_TYPE_SIGNAL_ACL) { |
if (acl_type == CCS_TYPE_SIGNAL_ACL) { |
1593 |
struct ccs_signal_acl *acl |
struct ccs_signal_acl *acl |
1594 |
= container_of(ptr, struct ccs_signal_acl, head); |
= container_of(ptr, typeof(*acl), head); |
1595 |
return ccs_print_signal_acl(head, acl, cond); |
return ccs_print_signal_acl(head, acl); |
1596 |
} |
} |
1597 |
if (acl_type == CCS_TYPE_MOUNT_ACL) { |
if (acl_type == CCS_TYPE_MOUNT_ACL) { |
1598 |
struct ccs_mount_acl *acl |
struct ccs_mount_acl *acl |
1599 |
= container_of(ptr, struct ccs_mount_acl, head); |
= container_of(ptr, typeof(*acl), head); |
1600 |
return ccs_print_mount_acl(head, acl, cond); |
return ccs_print_mount_acl(head, acl); |
1601 |
} |
} |
1602 |
BUG(); /* This must not happen. */ |
BUG(); /* This must not happen. */ |
1603 |
return false; |
return false; |
1604 |
} |
} |
1605 |
|
|
1606 |
/** |
/** |
1607 |
* ccs_read_domain_policy - Read domain policy. |
* ccs_read_domain2 - Read domain policy. |
1608 |
|
* |
1609 |
|
* @head: Pointer to "struct ccs_io_buffer". |
1610 |
|
* @domain: Pointer to "struct ccs_domain_info". |
1611 |
|
* |
1612 |
|
* Caller holds ccs_read_lock(). |
1613 |
|
* |
1614 |
|
* Returns true on success, false otherwise. |
1615 |
|
*/ |
1616 |
|
static bool ccs_read_domain2(struct ccs_io_buffer *head, |
1617 |
|
struct ccs_domain_info *domain) |
1618 |
|
{ |
1619 |
|
struct list_head *pos; |
1620 |
|
/* Print ACL entries in the domain. */ |
1621 |
|
list_for_each_cookie(pos, head->read_var2, &domain->acl_info_list) { |
1622 |
|
struct ccs_acl_info *ptr |
1623 |
|
= list_entry(pos, struct ccs_acl_info, list); |
1624 |
|
if (!ccs_print_entry(head, ptr)) |
1625 |
|
return false; |
1626 |
|
} |
1627 |
|
return true; |
1628 |
|
} |
1629 |
|
|
1630 |
|
/** |
1631 |
|
* ccs_read_domain - Read domain policy. |
1632 |
* |
* |
1633 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1634 |
* |
* |
1635 |
* Caller holds ccs_read_lock(). |
* Caller holds ccs_read_lock(). |
1636 |
*/ |
*/ |
1637 |
static void ccs_read_domain_policy(struct ccs_io_buffer *head) |
static void ccs_read_domain(struct ccs_io_buffer *head) |
1638 |
{ |
{ |
1639 |
struct list_head *dpos; |
struct list_head *pos; |
|
struct list_head *apos; |
|
1640 |
if (head->read_eof) |
if (head->read_eof) |
1641 |
return; |
return; |
1642 |
if (head->read_step == 0) |
list_for_each_cookie(pos, head->read_var1, &ccs_domain_list) { |
1643 |
head->read_step = 1; |
struct ccs_domain_info *domain = |
1644 |
list_for_each_cookie(dpos, head->read_var1, &ccs_domain_list) { |
list_entry(pos, struct ccs_domain_info, list); |
1645 |
struct ccs_domain_info *domain; |
switch (head->read_step) { |
1646 |
const char *quota_exceeded = ""; |
u8 i; |
1647 |
const char *transition_failed = ""; |
const char *w[CCS_MAX_DOMAIN_INFO_FLAGS]; |
1648 |
const char *ignore_global_allow_read = ""; |
case 0: |
1649 |
const char *ignore_global_allow_env = ""; |
if (domain->is_deleted && !head->read_single_domain) |
1650 |
domain = list_entry(dpos, struct ccs_domain_info, list); |
continue; |
1651 |
if (head->read_step != 1) |
/* Print domainname and flags. */ |
1652 |
goto acl_loop; |
for (i = 0; i < CCS_MAX_DOMAIN_INFO_FLAGS; i++) |
1653 |
if (domain->is_deleted && !head->read_single_domain) |
w[i] = domain->flags[i] ? ccs_dif[i] : ""; |
1654 |
continue; |
if (!ccs_io_printf(head, "%s\n" CCS_KEYWORD_USE_PROFILE |
1655 |
/* Print domainname and flags. */ |
"%u\n%s%s%s%s%s\n", |
1656 |
if (domain->quota_warned) |
domain->domainname->name, |
1657 |
quota_exceeded = CCS_KEYWORD_QUOTA_EXCEEDED "\n"; |
domain->profile, |
1658 |
if (domain->domain_transition_failed) |
w[CCS_DIF_QUOTA_WARNED], |
1659 |
transition_failed = CCS_KEYWORD_TRANSITION_FAILED "\n"; |
w[CCS_DIF_IGNORE_GLOBAL], |
1660 |
if (domain->ignore_global_allow_read) |
w[CCS_DIF_IGNORE_GLOBAL_ALLOW_READ], |
1661 |
ignore_global_allow_read |
w[CCS_DIF_IGNORE_GLOBAL_ALLOW_ENV], |
1662 |
= CCS_KEYWORD_IGNORE_GLOBAL_ALLOW_READ "\n"; |
w[CCS_DIF_TRANSITION_FAILED])) |
|
if (domain->ignore_global_allow_env) |
|
|
ignore_global_allow_env |
|
|
= CCS_KEYWORD_IGNORE_GLOBAL_ALLOW_ENV "\n"; |
|
|
if (!ccs_io_printf(head, "%s\n" CCS_KEYWORD_USE_PROFILE "%u\n" |
|
|
"%s%s%s%s\n", domain->domainname->name, |
|
|
domain->profile, quota_exceeded, |
|
|
transition_failed, |
|
|
ignore_global_allow_read, |
|
|
ignore_global_allow_env)) |
|
|
return; |
|
|
head->read_step = 2; |
|
|
acl_loop: |
|
|
if (head->read_step == 3) |
|
|
goto tail_mark; |
|
|
/* Print ACL entries in the domain. */ |
|
|
list_for_each_cookie(apos, head->read_var2, |
|
|
&domain->acl_info_list) { |
|
|
struct ccs_acl_info *ptr |
|
|
= list_entry(apos, struct ccs_acl_info, list); |
|
|
if (!ccs_print_entry(head, ptr)) |
|
1663 |
return; |
return; |
1664 |
|
head->read_step++; |
1665 |
|
/* fall through */ |
1666 |
|
case 1: |
1667 |
|
if (!ccs_read_domain2(head, domain)) |
1668 |
|
return; |
1669 |
|
head->read_step++; |
1670 |
|
/* fall through */ |
1671 |
|
case 2: |
1672 |
|
if (!ccs_io_printf(head, "\n")) |
1673 |
|
return; |
1674 |
|
head->read_step = 0; |
1675 |
|
if (head->read_single_domain) |
1676 |
|
goto out; |
1677 |
} |
} |
|
head->read_step = 3; |
|
|
tail_mark: |
|
|
if (!ccs_io_printf(head, "\n")) |
|
|
return; |
|
|
head->read_step = 1; |
|
|
if (head->read_single_domain) |
|
|
break; |
|
1678 |
} |
} |
1679 |
|
out: |
1680 |
head->read_eof = true; |
head->read_eof = true; |
1681 |
} |
} |
1682 |
|
|
1812 |
ccs_io_printf(head, "%u manager=%s execute_handler=%s " |
ccs_io_printf(head, "%u manager=%s execute_handler=%s " |
1813 |
"state[0]=%u state[1]=%u state[2]=%u", pid, |
"state[0]=%u state[1]=%u state[2]=%u", pid, |
1814 |
ccs_yesno(ccs_flags & |
ccs_yesno(ccs_flags & |
1815 |
CCS_TASK_IS_POLICY_MANAGER), |
CCS_TASK_IS_MANAGER), |
1816 |
ccs_yesno(ccs_flags & |
ccs_yesno(ccs_flags & |
1817 |
CCS_TASK_IS_EXECUTE_HANDLER), |
CCS_TASK_IS_EXECUTE_HANDLER), |
1818 |
(u8) (ccs_flags >> 24), |
(u8) (ccs_flags >> 24), |
1820 |
(u8) (ccs_flags >> 8)); |
(u8) (ccs_flags >> 8)); |
1821 |
} |
} |
1822 |
|
|
1823 |
|
static const char *ccs_transition_type[CCS_MAX_TRANSITION_TYPE] = { |
1824 |
|
[CCS_TRANSITION_CONTROL_NO_INITIALIZE] |
1825 |
|
= CCS_KEYWORD_NO_INITIALIZE_DOMAIN, |
1826 |
|
[CCS_TRANSITION_CONTROL_INITIALIZE] = CCS_KEYWORD_INITIALIZE_DOMAIN, |
1827 |
|
[CCS_TRANSITION_CONTROL_NO_KEEP] = CCS_KEYWORD_NO_KEEP_DOMAIN, |
1828 |
|
[CCS_TRANSITION_CONTROL_KEEP] = CCS_KEYWORD_KEEP_DOMAIN |
1829 |
|
}; |
1830 |
|
|
1831 |
|
static const char *ccs_group_name[CCS_MAX_GROUP] = { |
1832 |
|
[CCS_PATH_GROUP] = CCS_KEYWORD_PATH_GROUP, |
1833 |
|
[CCS_NUMBER_GROUP] = CCS_KEYWORD_NUMBER_GROUP, |
1834 |
|
[CCS_ADDRESS_GROUP] = CCS_KEYWORD_ADDRESS_GROUP |
1835 |
|
}; |
1836 |
|
|
1837 |
/** |
/** |
1838 |
* ccs_write_exception_policy - Write exception policy. |
* ccs_write_exception - Write exception policy. |
1839 |
* |
* |
1840 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1841 |
* |
* |
1842 |
* Returns 0 on success, negative value otherwise. |
* Returns 0 on success, negative value otherwise. |
1843 |
*/ |
*/ |
1844 |
static int ccs_write_exception_policy(struct ccs_io_buffer *head) |
static int ccs_write_exception(struct ccs_io_buffer *head) |
1845 |
{ |
{ |
1846 |
char *data = head->write_buf; |
char *data = head->write_buf; |
1847 |
bool is_delete = ccs_str_starts(&data, CCS_KEYWORD_DELETE); |
const bool is_delete = ccs_str_starts(&data, CCS_KEYWORD_DELETE); |
1848 |
if (ccs_str_starts(&data, CCS_KEYWORD_KEEP_DOMAIN)) |
u8 i; |
1849 |
return ccs_write_domain_keeper_policy(data, false, is_delete); |
static const struct { |
1850 |
if (ccs_str_starts(&data, CCS_KEYWORD_NO_KEEP_DOMAIN)) |
const char *keyword; |
1851 |
return ccs_write_domain_keeper_policy(data, true, is_delete); |
int (*write) (char *, const bool); |
1852 |
if (ccs_str_starts(&data, CCS_KEYWORD_INITIALIZE_DOMAIN)) |
} ccs_callback[4] = { |
1853 |
return ccs_write_domain_initializer_policy(data, false, |
{ CCS_KEYWORD_AGGREGATOR, ccs_write_aggregator }, |
1854 |
is_delete); |
{ CCS_KEYWORD_FILE_PATTERN, ccs_write_pattern }, |
1855 |
if (ccs_str_starts(&data, CCS_KEYWORD_NO_INITIALIZE_DOMAIN)) |
{ CCS_KEYWORD_DENY_REWRITE, ccs_write_no_rewrite }, |
1856 |
return ccs_write_domain_initializer_policy(data, true, |
{ CCS_KEYWORD_DENY_AUTOBIND, ccs_write_reserved_port } |
1857 |
is_delete); |
}; |
1858 |
if (ccs_str_starts(&data, CCS_KEYWORD_AGGREGATOR)) |
for (i = 0; i < 4; i++) { |
1859 |
return ccs_write_aggregator_policy(data, is_delete); |
if (ccs_str_starts(&data, ccs_callback[i].keyword)) |
1860 |
if (ccs_str_starts(&data, CCS_KEYWORD_ALLOW_READ)) |
return ccs_callback[i].write(data, is_delete); |
1861 |
return ccs_write_globally_readable_policy(data, is_delete); |
} |
1862 |
if (ccs_str_starts(&data, CCS_KEYWORD_ALLOW_ENV)) |
for (i = 0; i < CCS_MAX_TRANSITION_TYPE; i++) { |
1863 |
return ccs_write_globally_usable_env_policy(data, is_delete); |
if (ccs_str_starts(&data, ccs_transition_type[i])) |
1864 |
if (ccs_str_starts(&data, CCS_KEYWORD_FILE_PATTERN)) |
return ccs_write_transition_control(data, is_delete, |
1865 |
return ccs_write_pattern_policy(data, is_delete); |
i); |
1866 |
if (ccs_str_starts(&data, CCS_KEYWORD_PATH_GROUP)) |
} |
1867 |
return ccs_write_path_group_policy(data, is_delete); |
for (i = 0; i < CCS_MAX_GROUP; i++) { |
1868 |
if (ccs_str_starts(&data, CCS_KEYWORD_NUMBER_GROUP)) |
if (ccs_str_starts(&data, ccs_group_name[i])) |
1869 |
return ccs_write_number_group_policy(data, is_delete); |
return ccs_write_group(data, is_delete, i); |
1870 |
if (ccs_str_starts(&data, CCS_KEYWORD_DENY_REWRITE)) |
} |
1871 |
return ccs_write_no_rewrite_policy(data, is_delete); |
return ccs_write_domain2(data, &ccs_global_domain, is_delete); |
|
if (ccs_str_starts(&data, CCS_KEYWORD_ADDRESS_GROUP)) |
|
|
return ccs_write_address_group_policy(data, is_delete); |
|
|
if (ccs_str_starts(&data, CCS_KEYWORD_DENY_AUTOBIND)) |
|
|
return ccs_write_reserved_port_policy(data, is_delete); |
|
|
return -EINVAL; |
|
1872 |
} |
} |
1873 |
|
|
1874 |
/** |
/** |
1875 |
* ccs_read_exception_policy - Read exception policy. |
* ccs_read_group - Read "struct ccs_path_group"/"struct ccs_number_group"/"struct ccs_address_group" list. |
1876 |
* |
* |
1877 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1878 |
|
* @idx: Index number. |
1879 |
|
* |
1880 |
|
* Returns true on success, false otherwise. |
1881 |
* |
* |
1882 |
* Caller holds ccs_read_lock(). |
* Caller holds ccs_read_lock(). |
1883 |
*/ |
*/ |
1884 |
static void ccs_read_exception_policy(struct ccs_io_buffer *head) |
static bool ccs_read_group(struct ccs_io_buffer *head, const int idx) |
1885 |
{ |
{ |
1886 |
if (head->read_eof) |
struct list_head *gpos; |
1887 |
return; |
struct list_head *mpos; |
1888 |
switch (head->read_step) { |
const char *w[3] = { "", "", "" }; |
1889 |
case 0: |
w[0] = ccs_group_name[idx]; |
1890 |
head->read_var2 = NULL; |
list_for_each_cookie(gpos, head->read_var1, &ccs_group_list[idx]) { |
1891 |
head->read_step = 1; |
struct ccs_group *group = |
1892 |
case 1: |
list_entry(gpos, struct ccs_group, head.list); |
1893 |
if (!ccs_read_domain_keeper_policy(head)) |
w[1] = group->group_name->name; |
1894 |
break; |
list_for_each_cookie(mpos, head->read_var2, |
1895 |
head->read_var2 = NULL; |
&group->member_list) { |
1896 |
head->read_step = 2; |
char buffer[128]; |
1897 |
case 2: |
struct ccs_acl_head *ptr = |
1898 |
if (!ccs_read_globally_readable_policy(head)) |
list_entry(mpos, struct ccs_acl_head, list); |
1899 |
break; |
if (ptr->is_deleted) |
1900 |
head->read_var2 = NULL; |
continue; |
1901 |
head->read_step = 3; |
w[2] = buffer; |
1902 |
case 3: |
if (idx == CCS_PATH_GROUP) { |
1903 |
if (!ccs_read_globally_usable_env_policy(head)) |
w[2] = container_of(ptr, struct ccs_path_group, |
1904 |
break; |
head)->member_name->name; |
1905 |
head->read_var2 = NULL; |
} else if (idx == CCS_NUMBER_GROUP) { |
1906 |
head->read_step = 4; |
ccs_print_number(buffer, sizeof(buffer), |
1907 |
case 4: |
&container_of |
1908 |
if (!ccs_read_domain_initializer_policy(head)) |
(ptr, struct ccs_number_group, |
1909 |
break; |
head)->number); |
1910 |
head->read_var2 = NULL; |
} else if (idx == CCS_ADDRESS_GROUP) { |
1911 |
head->read_step = 6; |
struct ccs_address_group *member = |
1912 |
case 6: |
container_of(ptr, typeof(*member), |
1913 |
if (!ccs_read_aggregator_policy(head)) |
head); |
1914 |
break; |
if (member->is_ipv6) |
1915 |
head->read_var2 = NULL; |
ccs_print_ipv6(buffer, sizeof(buffer), |
1916 |
head->read_step = 7; |
member->min.ipv6, |
1917 |
case 7: |
member->max.ipv6); |
1918 |
if (!ccs_read_file_pattern(head)) |
else |
1919 |
break; |
ccs_print_ipv4(buffer, sizeof(buffer), |
1920 |
head->read_var2 = NULL; |
member->min.ipv4, |
1921 |
head->read_step = 8; |
member->max.ipv4); |
1922 |
case 8: |
} |
1923 |
if (!ccs_read_no_rewrite_policy(head)) |
if (!ccs_io_printf(head, "%s%s %s\n", w[0], w[1], |
1924 |
break; |
w[2])) |
1925 |
head->read_var2 = NULL; |
return false; |
1926 |
head->read_step = 9; |
} |
|
case 9: |
|
|
if (!ccs_read_path_group_policy(head)) |
|
|
break; |
|
|
head->read_var1 = NULL; |
|
|
head->read_var2 = NULL; |
|
|
head->read_step = 10; |
|
|
case 10: |
|
|
if (!ccs_read_number_group_policy(head)) |
|
|
break; |
|
|
head->read_var1 = NULL; |
|
|
head->read_var2 = NULL; |
|
|
head->read_step = 11; |
|
|
case 11: |
|
|
if (!ccs_read_address_group_policy(head)) |
|
|
break; |
|
|
head->read_var2 = NULL; |
|
|
head->read_step = 12; |
|
|
case 12: |
|
|
if (!ccs_read_reserved_port_policy(head)) |
|
|
break; |
|
|
head->read_eof = true; |
|
1927 |
} |
} |
1928 |
|
return true; |
1929 |
} |
} |
1930 |
|
|
1931 |
/** |
/** |
1932 |
* ccs_get_argv0 - Get argv[0]. |
* ccs_read_policy - Read "struct ccs_..._entry" list. |
1933 |
* |
* |
1934 |
* @ee: Pointer to "struct ccs_execve_entry". |
* @head: Pointer to "struct ccs_io_buffer". |
1935 |
|
* @idx: Index number. |
1936 |
* |
* |
1937 |
* Returns true on success, false otherwise. |
* Returns true on success, false otherwise. |
1938 |
|
* |
1939 |
|
* Caller holds ccs_read_lock(). |
1940 |
*/ |
*/ |
1941 |
static bool ccs_get_argv0(struct ccs_execve_entry *ee) |
static bool ccs_read_policy(struct ccs_io_buffer *head, const int idx) |
1942 |
{ |
{ |
1943 |
struct linux_binprm *bprm = ee->bprm; |
struct list_head *pos; |
1944 |
char *arg_ptr = ee->tmp; |
list_for_each_cookie(pos, head->read_var2, &ccs_policy_list[idx]) { |
1945 |
int arg_len = 0; |
const char *w[4] = { "", "", "", "" }; |
1946 |
unsigned long pos = bprm->p; |
char buffer[16]; |
1947 |
int offset = pos % PAGE_SIZE; |
struct ccs_acl_head *acl = container_of(pos, typeof(*acl), |
1948 |
bool done = false; |
list); |
1949 |
if (!bprm->argc) |
if (acl->is_deleted) |
1950 |
goto out; |
continue; |
1951 |
while (1) { |
switch (idx) { |
1952 |
if (!ccs_dump_page(bprm, pos, &ee->dump)) |
case CCS_ID_TRANSITION_CONTROL: |
1953 |
goto out; |
{ |
1954 |
pos += PAGE_SIZE - offset; |
struct ccs_transition_control *ptr = |
1955 |
/* Read. */ |
container_of(acl, typeof(*ptr), head); |
1956 |
while (offset < PAGE_SIZE) { |
w[0] = ccs_transition_type[ptr->type]; |
1957 |
const char *kaddr = ee->dump.data; |
w[1] = ptr->program ? ptr->program->name |
1958 |
const unsigned char c = kaddr[offset++]; |
: "any"; |
1959 |
if (c && arg_len < CCS_EXEC_TMPSIZE - 10) { |
w[2] = " from "; |
1960 |
if (c == '\\') { |
w[3] = ptr->domainname ? ptr->domainname->name |
1961 |
arg_ptr[arg_len++] = '\\'; |
: "any"; |
1962 |
arg_ptr[arg_len++] = '\\'; |
} |
1963 |
} else if (c > ' ' && c < 127) { |
break; |
1964 |
arg_ptr[arg_len++] = c; |
case CCS_ID_AGGREGATOR: |
1965 |
} else { |
{ |
1966 |
arg_ptr[arg_len++] = '\\'; |
struct ccs_aggregator *ptr = |
1967 |
arg_ptr[arg_len++] = (c >> 6) + '0'; |
container_of(acl, typeof(*ptr), head); |
1968 |
arg_ptr[arg_len++] |
w[0] = CCS_KEYWORD_AGGREGATOR; |
1969 |
= ((c >> 3) & 7) + '0'; |
w[1] = ptr->original_name->name; |
1970 |
arg_ptr[arg_len++] = (c & 7) + '0'; |
w[2] = " "; |
1971 |
} |
w[3] = ptr->aggregated_name->name; |
|
} else { |
|
|
arg_ptr[arg_len] = '\0'; |
|
|
done = true; |
|
|
break; |
|
1972 |
} |
} |
|
} |
|
|
offset = 0; |
|
|
if (done) |
|
1973 |
break; |
break; |
1974 |
|
case CCS_ID_PATTERN: |
1975 |
|
{ |
1976 |
|
struct ccs_pattern *ptr = |
1977 |
|
container_of(acl, typeof(*ptr), head); |
1978 |
|
w[0] = CCS_KEYWORD_FILE_PATTERN; |
1979 |
|
w[1] = ptr->pattern->name; |
1980 |
|
} |
1981 |
|
break; |
1982 |
|
case CCS_ID_NO_REWRITE: |
1983 |
|
{ |
1984 |
|
struct ccs_no_rewrite *ptr = |
1985 |
|
container_of(acl, typeof(*ptr), head); |
1986 |
|
w[0] = CCS_KEYWORD_DENY_REWRITE; |
1987 |
|
w[1] = ptr->pattern->name; |
1988 |
|
} |
1989 |
|
break; |
1990 |
|
case CCS_ID_RESERVEDPORT: |
1991 |
|
{ |
1992 |
|
struct ccs_reserved *ptr = |
1993 |
|
container_of(acl, typeof(*ptr), head); |
1994 |
|
const u16 min_port = ptr->min_port; |
1995 |
|
const u16 max_port = ptr->max_port; |
1996 |
|
w[0] = CCS_KEYWORD_DENY_AUTOBIND; |
1997 |
|
snprintf(buffer, sizeof(buffer) - 1, "%u%c%u", |
1998 |
|
min_port, min_port != max_port ? |
1999 |
|
'-' : '\0', max_port); |
2000 |
|
buffer[sizeof(buffer) - 1] = '\0'; |
2001 |
|
w[1] = buffer; |
2002 |
|
} |
2003 |
|
break; |
2004 |
|
default: |
2005 |
|
continue; |
2006 |
|
} |
2007 |
|
if (!ccs_io_printf(head, "%s%s%s%s\n", w[0], w[1], w[2], w[3])) |
2008 |
|
return false; |
2009 |
} |
} |
2010 |
return true; |
return true; |
|
out: |
|
|
return false; |
|
2011 |
} |
} |
2012 |
|
|
2013 |
/** |
static void ccs_read_global_domain(struct ccs_io_buffer *head) |
|
* ccs_get_execute_condition - Get condition part for execute requests. |
|
|
* |
|
|
* @ee: Pointer to "struct ccs_execve_entry". |
|
|
* |
|
|
* Returns pointer to "struct ccs_condition" on success, NULL otherwise. |
|
|
*/ |
|
|
static struct ccs_condition *ccs_get_execute_condition(struct ccs_execve_entry |
|
|
*ee) |
|
2014 |
{ |
{ |
2015 |
struct ccs_condition *cond; |
if (!head->read_eof) |
2016 |
char *buf; |
head->read_eof = ccs_read_domain2(head, &ccs_global_domain); |
|
int len = 256; |
|
|
char *realpath = NULL; |
|
|
char *argv0 = NULL; |
|
|
const struct ccs_profile *profile = ccs_profile(ee->r.domain->profile); |
|
|
if (profile->learning->learning_exec_realpath) { |
|
|
struct file *file = ee->bprm->file; |
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20) |
|
|
struct path path = { file->f_vfsmnt, file->f_dentry }; |
|
|
realpath = ccs_realpath_from_path(&path); |
|
|
#else |
|
|
realpath = ccs_realpath_from_path(&file->f_path); |
|
|
#endif |
|
|
if (realpath) |
|
|
len += strlen(realpath) + 17; |
|
|
} |
|
|
if (profile->learning->learning_exec_argv0) { |
|
|
if (ccs_get_argv0(ee)) { |
|
|
argv0 = ee->tmp; |
|
|
len += strlen(argv0) + 16; |
|
|
} |
|
|
} |
|
|
buf = kmalloc(len, CCS_GFP_FLAGS); |
|
|
if (!buf) { |
|
|
kfree(realpath); |
|
|
return NULL; |
|
|
} |
|
|
snprintf(buf, len - 1, "if"); |
|
|
if (current->ccs_flags & CCS_TASK_IS_EXECUTE_HANDLER) { |
|
|
const int pos = strlen(buf); |
|
|
snprintf(buf + pos, len - pos - 1, |
|
|
" task.type=execute_handler"); |
|
|
} |
|
|
if (realpath) { |
|
|
const int pos = strlen(buf); |
|
|
snprintf(buf + pos, len - pos - 1, " exec.realpath=\"%s\"", |
|
|
realpath); |
|
|
kfree(realpath); |
|
|
} |
|
|
if (argv0) { |
|
|
const int pos = strlen(buf); |
|
|
snprintf(buf + pos, len - pos - 1, " exec.argv[0]=\"%s\"", |
|
|
argv0); |
|
|
} |
|
|
cond = ccs_get_condition(buf); |
|
|
kfree(buf); |
|
|
return cond; |
|
2017 |
} |
} |
2018 |
|
|
2019 |
/** |
/** |
2020 |
* ccs_get_symlink_condition - Get condition part for symlink requests. |
* ccs_read_exception - Read exception policy. |
2021 |
* |
* |
2022 |
* @r: Pointer to "struct ccs_request_info". |
* @head: Pointer to "struct ccs_io_buffer". |
2023 |
* |
* |
2024 |
* Returns pointer to "struct ccs_condition" on success, NULL otherwise. |
* Caller holds ccs_read_lock(). |
2025 |
*/ |
*/ |
2026 |
static struct ccs_condition *ccs_get_symlink_condition(struct ccs_request_info |
static void ccs_read_exception(struct ccs_io_buffer *head) |
|
*r) |
|
2027 |
{ |
{ |
2028 |
struct ccs_condition *cond; |
if (head->read_eof) |
2029 |
char *buf; |
return; |
2030 |
int len = 256; |
while (head->read_step < CCS_MAX_POLICY && |
2031 |
const char *symlink = NULL; |
ccs_read_policy(head, head->read_step)) |
2032 |
const struct ccs_profile *profile = ccs_profile(r->profile); |
head->read_step++; |
2033 |
if (profile->learning->learning_symlink_target) { |
if (head->read_step < CCS_MAX_POLICY) |
2034 |
symlink = r->obj->symlink_target->name; |
return; |
2035 |
len += strlen(symlink) + 18; |
while (head->read_step < CCS_MAX_POLICY + CCS_MAX_GROUP && |
2036 |
} |
ccs_read_group(head, head->read_step - CCS_MAX_POLICY)) |
2037 |
buf = kmalloc(len, CCS_GFP_FLAGS); |
head->read_step++; |
2038 |
if (!buf) |
if (head->read_step < CCS_MAX_POLICY + CCS_MAX_GROUP) |
2039 |
return NULL; |
return; |
2040 |
snprintf(buf, len - 1, "if"); |
head->read = ccs_read_global_domain; |
|
if (current->ccs_flags & CCS_TASK_IS_EXECUTE_HANDLER) { |
|
|
const int pos = strlen(buf); |
|
|
snprintf(buf + pos, len - pos - 1, |
|
|
" task.type=execute_handler"); |
|
|
} |
|
|
if (symlink) { |
|
|
const int pos = strlen(buf); |
|
|
snprintf(buf + pos, len - pos - 1, " symlink.target=\"%s\"", |
|
|
symlink); |
|
|
} |
|
|
cond = ccs_get_condition(buf); |
|
|
kfree(buf); |
|
|
return cond; |
|
2041 |
} |
} |
2042 |
|
|
2043 |
/* Wait queue for ccs_query_list. */ |
/* Wait queue for ccs_query_list. */ |
2062 |
/* Number of "struct file" referring /proc/ccs/query interface. */ |
/* Number of "struct file" referring /proc/ccs/query interface. */ |
2063 |
static atomic_t ccs_query_observers = ATOMIC_INIT(0); |
static atomic_t ccs_query_observers = ATOMIC_INIT(0); |
2064 |
|
|
2065 |
|
static void ccs_addprintf(char *buffer, int len, const char *fmt, ...) |
2066 |
|
{ |
2067 |
|
va_list args; |
2068 |
|
const int pos = strlen(buffer); |
2069 |
|
va_start(args, fmt); |
2070 |
|
vsnprintf(buffer + pos, len - pos - 1, fmt, args); |
2071 |
|
va_end(args); |
2072 |
|
} |
2073 |
|
|
2074 |
|
static void ccs_truncate(char *str) |
2075 |
|
{ |
2076 |
|
while (* (unsigned char *) str > (unsigned char) ' ') |
2077 |
|
str++; |
2078 |
|
*str = '\0'; |
2079 |
|
} |
2080 |
|
|
2081 |
/** |
/** |
2082 |
* ccs_supervisor - Ask for the supervisor's decision. |
* ccs_supervisor - Ask for the supervisor's decision. |
2083 |
* |
* |
2084 |
* @r: Pointer to "struct ccs_request_info". |
* @r: Pointer to "struct ccs_request_info". |
2085 |
* @fmt: The printf()'s format string, followed by parameters. |
* @fmt: The printf()'s format string, followed by parameters. |
2086 |
* |
* |
2087 |
* Returns 0 if the supervisor decided to permit the access request which |
* Returns 0 if the supervisor decided to permit the access request which |
2088 |
* violated the policy in enforcing mode, CCS_RETRY_REQUEST if the supervisor |
* violated the policy in enforcing mode, CCS_RETRY_REQUEST if the supervisor |
2099 |
struct ccs_query_entry *ccs_query_entry = NULL; |
struct ccs_query_entry *ccs_query_entry = NULL; |
2100 |
bool quota_exceeded = false; |
bool quota_exceeded = false; |
2101 |
char *header; |
char *header; |
2102 |
if (!r->domain) |
struct ccs_domain_info * const domain = ccs_current_domain(); |
2103 |
r->domain = ccs_current_domain(); |
va_start(args, fmt); |
2104 |
switch (r->mode) { |
len = vsnprintf((char *) &pos, sizeof(pos) - 1, fmt, args) + 80; |
2105 |
|
va_end(args); |
2106 |
|
if (r->mode == CCS_CONFIG_LEARNING) { |
2107 |
char *buffer; |
char *buffer; |
2108 |
struct ccs_condition *cond; |
char *realpath = NULL; |
2109 |
case CCS_CONFIG_LEARNING: |
char *argv0 = NULL; |
2110 |
|
char *symlink = NULL; |
2111 |
|
char *handler = NULL; |
2112 |
|
const struct ccs_preference *pref; |
2113 |
if (!ccs_domain_quota_ok(r)) |
if (!ccs_domain_quota_ok(r)) |
2114 |
return 0; |
return 0; |
2115 |
va_start(args, fmt); |
header = ccs_init_log(&len, r); |
2116 |
len = vsnprintf((char *) &pos, sizeof(pos) - 1, fmt, args) + 4; |
if (!header) |
|
va_end(args); |
|
|
buffer = kmalloc(len, CCS_GFP_FLAGS); |
|
|
if (!buffer) |
|
2117 |
return 0; |
return 0; |
2118 |
va_start(args, fmt); |
pref = ccs_profile(r->profile)->learning; |
2119 |
vsnprintf(buffer, len - 1, fmt, args); |
/* strstr() will return NULL if ordering is wrong. */ |
2120 |
va_end(args); |
if (r->param_type == CCS_TYPE_PATH_ACL && |
2121 |
ccs_normalize_line(buffer); |
r->param.path.operation == CCS_TYPE_EXECUTE) { |
2122 |
if (r->ee && !strncmp(buffer, "allow_execute ", 14)) |
if (pref->learning_exec_argv0) { |
2123 |
cond = ccs_get_execute_condition(r->ee); |
argv0 = strstr(header, " argv[]={ \""); |
2124 |
else if (r->obj && r->obj->symlink_target) |
if (argv0) { |
2125 |
cond = ccs_get_symlink_condition(r); |
argv0 += 10; |
2126 |
else if ((current->ccs_flags & CCS_TASK_IS_EXECUTE_HANDLER)) { |
ccs_truncate(argv0); |
2127 |
char str[] = "if task.type=execute_handler"; |
} |
2128 |
cond = ccs_get_condition(str); |
} |
2129 |
} else |
if (pref->learning_exec_realpath) { |
2130 |
cond = NULL; |
realpath = strstr(header, |
2131 |
ccs_write_domain_policy2(buffer, r->domain, cond, false); |
" exec={ realpath=\""); |
2132 |
ccs_put_condition(cond); |
if (realpath) { |
2133 |
kfree(buffer); |
realpath += 8; |
2134 |
/* fall through */ |
ccs_truncate(realpath); |
2135 |
case CCS_CONFIG_PERMISSIVE: |
} |
2136 |
|
} |
2137 |
|
} else if (r->param_type == CCS_TYPE_PATH_ACL && |
2138 |
|
r->param.path.operation == CCS_TYPE_SYMLINK && |
2139 |
|
pref->learning_symlink_target) { |
2140 |
|
symlink = strstr(header, " symlink.target=\""); |
2141 |
|
if (symlink) |
2142 |
|
ccs_truncate(symlink + 1); |
2143 |
|
} |
2144 |
|
handler = strstr(header, "type=execute_handler"); |
2145 |
|
if (handler) |
2146 |
|
ccs_truncate(handler); |
2147 |
|
buffer = kmalloc(len, CCS_GFP_FLAGS); |
2148 |
|
if (buffer) { |
2149 |
|
va_start(args, fmt); |
2150 |
|
vsnprintf(buffer, len - 1, fmt, args); |
2151 |
|
va_end(args); |
2152 |
|
if (handler || realpath || argv0 || symlink) { |
2153 |
|
ccs_addprintf(buffer, len, " if"); |
2154 |
|
if (handler) |
2155 |
|
ccs_addprintf(buffer, len, " task.%s", |
2156 |
|
handler); |
2157 |
|
if (realpath) |
2158 |
|
ccs_addprintf(buffer, len, " exec.%s", |
2159 |
|
realpath); |
2160 |
|
if (argv0) |
2161 |
|
ccs_addprintf(buffer, len, |
2162 |
|
" exec.argv[0]=%s", |
2163 |
|
argv0); |
2164 |
|
if (symlink) |
2165 |
|
ccs_addprintf(buffer, len, "%s", |
2166 |
|
symlink); |
2167 |
|
} |
2168 |
|
ccs_normalize_line(buffer); |
2169 |
|
ccs_write_domain2(buffer, domain, false); |
2170 |
|
kfree(buffer); |
2171 |
|
} |
2172 |
|
kfree(header); |
2173 |
return 0; |
return 0; |
2174 |
} |
} |
2175 |
|
if (r->mode != CCS_CONFIG_ENFORCING) |
2176 |
|
return 0; |
2177 |
if (!atomic_read(&ccs_query_observers)) { |
if (!atomic_read(&ccs_query_observers)) { |
2178 |
int i; |
int i; |
2179 |
if (current->ccs_flags & CCS_DONT_SLEEP_ON_ENFORCE_ERROR) |
if (current->ccs_flags & CCS_DONT_SLEEP_ON_ENFORCE_ERROR) |
2180 |
return -EPERM; |
return -EPERM; |
2181 |
for (i = 0; i < ccs_profile(r->domain->profile)->enforcing-> |
for (i = 0; i < ccs_profile(domain->profile)->enforcing-> |
2182 |
enforcing_penalty; i++) { |
enforcing_penalty; i++) { |
2183 |
set_current_state(TASK_INTERRUPTIBLE); |
set_current_state(TASK_INTERRUPTIBLE); |
2184 |
schedule_timeout(HZ / 10); |
schedule_timeout(HZ / 10); |
2185 |
} |
} |
2186 |
return -EPERM; |
return -EPERM; |
2187 |
} |
} |
2188 |
va_start(args, fmt); |
header = ccs_init_log(&len, r); |
|
len = vsnprintf((char *) &pos, sizeof(pos) - 1, fmt, args) + 32; |
|
|
va_end(args); |
|
|
header = ccs_init_audit_log(&len, r); |
|
2189 |
if (!header) |
if (!header) |
2190 |
goto out; |
goto out; |
2191 |
ccs_query_entry = kzalloc(sizeof(*ccs_query_entry), CCS_GFP_FLAGS); |
ccs_query_entry = kzalloc(sizeof(*ccs_query_entry), CCS_GFP_FLAGS); |
2207 |
spin_unlock(&ccs_query_list_lock); |
spin_unlock(&ccs_query_list_lock); |
2208 |
if (quota_exceeded) |
if (quota_exceeded) |
2209 |
goto out; |
goto out; |
2210 |
pos = snprintf(ccs_query_entry->query, len - 1, "Q%u-%hu\n%s", |
snprintf(ccs_query_entry->query, len - 1, "Q%u-%hu\n%s", |
2211 |
ccs_query_entry->serial, r->retry, header); |
ccs_query_entry->serial, r->retry, header); |
2212 |
kfree(header); |
kfree(header); |
2213 |
header = NULL; |
header = NULL; |
2214 |
va_start(args, fmt); |
ccs_addprintf(ccs_query_entry->query, len, fmt, args); |
|
vsnprintf(ccs_query_entry->query + pos, len - 1 - pos, fmt, args); |
|
2215 |
ccs_query_entry->query_len = strlen(ccs_query_entry->query) + 1; |
ccs_query_entry->query_len = strlen(ccs_query_entry->query) + 1; |
|
va_end(args); |
|
2216 |
spin_lock(&ccs_query_list_lock); |
spin_lock(&ccs_query_list_lock); |
2217 |
list_add_tail(&ccs_query_entry->list, &ccs_query_list); |
list_add_tail(&ccs_query_entry->list, &ccs_query_list); |
2218 |
spin_unlock(&ccs_query_list_lock); |
spin_unlock(&ccs_query_list_lock); |
2437 |
head->type = type; |
head->type = type; |
2438 |
switch (type) { |
switch (type) { |
2439 |
case CCS_DOMAINPOLICY: /* /proc/ccs/domain_policy */ |
case CCS_DOMAINPOLICY: /* /proc/ccs/domain_policy */ |
2440 |
head->write = ccs_write_domain_policy; |
head->write = ccs_write_domain; |
2441 |
head->read = ccs_read_domain_policy; |
head->read = ccs_read_domain; |
2442 |
break; |
break; |
2443 |
case CCS_EXCEPTIONPOLICY: /* /proc/ccs/exception_policy */ |
case CCS_EXCEPTIONPOLICY: /* /proc/ccs/exception_policy */ |
2444 |
head->write = ccs_write_exception_policy; |
head->write = ccs_write_exception; |
2445 |
head->read = ccs_read_exception_policy; |
head->read = ccs_read_exception; |
2446 |
break; |
break; |
2447 |
#ifdef CONFIG_CCSECURITY_AUDIT |
#ifdef CONFIG_CCSECURITY_AUDIT |
2448 |
case CCS_GRANTLOG: /* /proc/ccs/grant_log */ |
case CCS_GRANTLOG: /* /proc/ccs/grant_log */ |
2449 |
case CCS_REJECTLOG: /* /proc/ccs/reject_log */ |
case CCS_REJECTLOG: /* /proc/ccs/reject_log */ |
2450 |
head->poll = ccs_poll_audit_log; |
head->poll = ccs_poll_log; |
2451 |
head->read = ccs_read_audit_log; |
head->read = ccs_read_log; |
2452 |
break; |
break; |
2453 |
#endif |
#endif |
2454 |
case CCS_SELFDOMAIN: /* /proc/ccs/self_domain */ |
case CCS_SELFDOMAIN: /* /proc/ccs/self_domain */ |
2488 |
head->read = ccs_read_query; |
head->read = ccs_read_query; |
2489 |
break; |
break; |
2490 |
case CCS_MANAGER: /* /proc/ccs/manager */ |
case CCS_MANAGER: /* /proc/ccs/manager */ |
2491 |
head->write = ccs_write_manager_policy; |
head->write = ccs_write_manager; |
2492 |
head->read = ccs_read_manager_policy; |
head->read = ccs_read_manager; |
2493 |
break; |
break; |
2494 |
} |
} |
2495 |
if (!(file->f_mode & FMODE_READ)) { |
if (!(file->f_mode & FMODE_READ)) { |
2647 |
return -EINTR; |
return -EINTR; |
2648 |
idx = ccs_read_lock(); |
idx = ccs_read_lock(); |
2649 |
/* Don't allow updating policies by non manager programs. */ |
/* Don't allow updating policies by non manager programs. */ |
2650 |
if (head->write != ccs_write_pid && |
if (head->write != ccs_write_pid && head->write != ccs_write_domain && |
2651 |
head->write != ccs_write_domain_policy && |
!ccs_manager()) { |
|
!ccs_is_policy_manager()) { |
|
2652 |
ccs_read_unlock(idx); |
ccs_read_unlock(idx); |
2653 |
mutex_unlock(&head->io_sem); |
mutex_unlock(&head->io_sem); |
2654 |
return -EPERM; |
return -EPERM; |